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Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
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Preliminary Edition Rev F Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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In no event will SBS be liable for any lost revenue or profits or other special, indirect, incidental and consequential damage, even if SBS has been advised of the possibility of such damages, as a result of the usage of this document and the product that this document describes.
The PCI 6254 PCI Bridge connects the PCI bus (bus 0) to the cPCI backplane (bus1). Because the CM4 can function as a system controller or a peripheral card, the PCI 6254 PCI Bridge (formerly CM4 User’s Guide—SBS Technologies...
Introduction HB6) must change how it handles data and PCI signals according to the mode in which the CM4 is operating. When the CM4 is a system controller, the PCI 6254 is in transparent mode, which means the PCI host—the Tsi107 Host Bridge—looks through the PCI 6254 to the backplane, to the PCI devices on other peripheral cards throughout the system.
• Fax.: (919) 851-2844 For more information, refer to “Customer Service” on page 6-2. 1.5 Related Documents For more information on CM4 components, refer to the following documents: Components • MPC755 RISC Processor Hardware Specification—Motorola, Inc., MPC750EC/D Rev. 6, September 2002 •...
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• Draft Standard Physical and Environmental layers for PCI Mezzanine Cards—PMC, IEEE Standards Department, P1386/Rev 1.0 1. PICMG Specifications are available to PICMG members only. SBS Technologies is not authorized to dis- tribute copies of these specifications. More information can be found at http://www.picmg.org.
The CM4 is shipped with the following items: • CM4 SBC printed circuit board 2.2 Equipment Needed The following items are needed to install and operate the CM4: • Host computer with terminal/console program • CompactPCI-compatible chassis with system controller card installed •...
Getting Started 2.3 Power The CM4 is designed for +3.3V operation but will tolerate +5V. The MIC2903 DC/DC Converter taps the +3.3V rail to provide a +2.5V line. The LTC1727 Power Monitor monitors the +3.3V and +2.5V line. Caution! Processor manufacturers recommend the following power restrictions for long term product reliability.To comply with these power restrictions, it is recom-...
(0.8-newton meters). All Configurations 9. When the CM4 has been installed in the chassis, install a serial cable from the host com- puter to the CM4 through either the optional CM4 Transition Module or other serial port connected to the backplane.
Decoder CPLD. If it is out of range for longer than 50µs, the power monitor asserts the reset out- put (BOARD_RST#), which resets the CM4. If the +2.5V supply drifts outside its specified range, the power monitor will assert the VCC2.5OK signal that disables the LM2636 Buck Controller, which provides the processor core voltages.
Board Description 3.5.3 JTAG/COP Port (P1100) CM4 provides a JTAG/COP port (P1100) attached to the processor for single-stepping through code on the processor. The JTAG/COP port is fully functional with EST VisionProbe II emulators. JTAG/COP port pin assignments Table 3-6...
Tsi107PCI Bridge through a 16-bit bus switch. The 16-bit bus switch changes the direc- tion of data flow between read and write cycles. CM4 User’s Guide—SBS Technologies Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Map A conforms to the now-obsolete PowerPC Reference Platform (PReP) specification. Memory Map B conforms to the PowerPC microprocessor Common Hardware Reference Plat- form (CHRP) specification. At power-up or reset, CM4 selects Memory Map B as default. The memory map can be viewed from two perspectives: •...
“nn” represents the address of the configuration register 3.10 Serial I/O Communications The CM4 includes four asynchronous serial ports: two RS-232 and two RS-422/485, imple- mented in two dual ST16C2550 UARTS. The UARTs are fully NS16450 and NS16550-compati- ble. Each UART includes a separate interrupt and a programmable baud generator capable of 50–...
Board Description 3.11 Digital I/O Communications The CM4 provides five digital control I/O ports for users to control external process functions. A set of CPLD registers enables the software applications to separately control the direction and usage of each port. Figure 3-6 on page 3-15 shows the circuitry for digital I/O port 0. Each regis- ter uses five bits (6, 3:0), one for each port (see “Digital I/O Registers”...
It is important to be aware, as it relates to the following sections, that the PCI 6254 handles reset and interrupt signals differently when the CM4 is installed in a system slot, than when the CM4 is installed in a peripheral slot as shown in Figure 3-8 on page 3-17.
Figure 3-8 3.14 Reset Circuitry The CM4 reset circuitry consists of hard and soft resets. Hard resets are asserted during power-up or by a voltage drifting out of a specified range, a manual reset, or a PCI reset from the Compact- PCI backplane (discussed separately from hard resets).
BOARD_RST# to assert the PCI_RST#. The PCI_RST# signal resets all PCI devices on the CM4 (see “PCI Resets” on page 3-20). SBS Technologies offers a CM4 Transition Module that includes a reset switch on a rear panel or a RST_BUT# pin in the 26-pin Miscellaneous connector.
3.14.3 PCI Resets When the CM4 is installed in a system slot, it can send PCI resets to peripheral cards in the sys- tem through the CompactPCI backplane but cannot receive PCI resets. When the CM4 is installed in a non-system controller slot, it can receive a PCI reset from the system controller but cannot send PCI resets out to the system.
Bridge PCI reset when CM4 is a system controller Figure 3-11 The PCI reset signal is the only signal affected by whether the CM4 is a system controller or peripheral card. CM4 is a Peripheral Card When the CM4 is installed in a non-system controller slot, the PCI 6254 PCI Bridge changes to non-transparent mode.
(P6254_PINTA#). The output is enabled by the de-asserted SYSEN#. PMC PCI Interrupts If a PMC module is installed on the CM4, it can output four PCI interrupts to the Tsi107 Host Bridge through interrupt outputs (INT[A…D]# regardless of whether CM4 is functioning as sys- tem controller or peripheral card as shown in Figure 3-16 on page 3-26.
Board Description 3.15.2 On-board Interrupts The CM4 employs the Decoder CPLD to combine the interrupts from several on-board devices into one interrupt signal—SYSIRQ as shown in Figure 3-13 on page 3-23. The Decoder CPLD receives inputs from the following on-board devices: •...
Figure 3-16 3.16 Clock Circuitry The CM4 clock circuitry begins with one oscillator—14.318MHz input to the ICS9159C-02 clock generator. The ICS9159C-02 clock generator uses the 14.318MHz clock as the main reference clock to generate three clock outputs: 33MHz, 24MHz, and 14.318MHz as shown in Figure 3-17 on page 3-27.
The Tsi107 distributes the 33MHz clocks through a PCI clock fanout buffer. The CPU and SDRAM clocks go through a Delay-Locked Loop (DLL) buffer to minimize trace-delay effects. The 33MHz clocks are output to the following CM4 devices as shown in Figure 3-18 on page 3-28: •...
3.16.4 PCI 6254 PCI Bridge Clock Operation—Transparent Mode When the CM4 is functioning as a system controller—the CM4 is installed in a system slot and the SYSEN# signal is asserted on the S_CLKOFF input—the PCI 6254 PCI Bridge functions in the transparent mode.
(INTA#, INTB#, INTC#, and INTD#) and one combined interrupt (SYSIRQ#) from the on-board devices. The four PCI interrupts are input lines when the CM4 is functioning as a system control- ler. When the CM4 is a peripheral card, three of the PCI interrupts (INTB#, INTC#, and INTD#) are disabled and the INTA# becomes an output to the cPCI backplane through the Decoder CPLD.
PCI resets, interrupts, and clocks from the PCI local bus to the cPCI backplane. 4.5 SDRAM The CM4 offers one bank of 16M x 16 SDRAM chips (up to four devices) for a total on-board system memory from 128MB to 512MB of SDRAM with a single 8-bit ECC device providing single-bit error correction and double-bit error detection.
NOTE: With the external 24MHz clock, each channel is capable of data rates up to 1.5Mbps, however drivers provided by the optional CM4 BSP only support a maximum baud rate to 38400 Baud.
DS1685 RTC. The CM4 does not provide battery backup for the DS1685 RTC so when the CM4 is not powered on, the DS1685 RTC requires an external power source. A power can be applied through the BATT+ line available on the cPCI backplane through cPCI connector P7202.
00 to 99 Century 0 to 99 00 to 63 00 to 99 Data Alarm 1 to 31 01 to 1F 01 to 31 CM4 User’s Guide—SBS Technologies Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
WD_ON bit (b0) to enable the watchdog timer. The watchdog timer has a 0.5 second time- out. Optional CM4 BSP firmware can read the Watchdog Control Register to reset the count. If the BSP firmware does not reset the count and it expires, the watchdog circuitry issues a reset sig- nal to the processor.
The MCP Reset register is an a 8-bit write-only register that, when written to, resets the NMI input to the MCP107 Host Bridge. The data written can be any value. Address offset: 0xFF00_8002 Access: Write-only CM4 User’s Guide—SBS Technologies Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
CPLD Registers 5.4 Interrupt Status Register The Interrupt Status register is an 8-bit read-only register that provides status indications for inter- rupt signals from various CM4 components. Address offset: 0xFF00_8010 Access: Read-only Field Default Description DI/O_INT Digital I/O Interrupt 0 = interrupt de-asserted...
BOOTSEL signal status—indicates the status of the BOOT- SEL signal. 0 = jumper installed 1 = jumper not installed NOTE: CM4 does not include an on-board BOOTSEL jumper, however, an external jumper may be attached to this signal. 4 to 0 GA4 to GA0 Geographical Address—connects to GA pins on cPCI 7202...
5.8 CPLD Version Register The CPLD Version register is an 8-bit read-only register that provides the CPLD version number. Address offset: 0xFF00_8053 Access: Read-only CM4 User’s Guide—SBS Technologies Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
The latest revisions of product documentation including User’s Guides and Data Sheets are avail- ® able in PDF format from the SBS web site. PDF documents can be viewed using Adobe Acrobat Reader, which is available for downloading from the Adobe web site (www.adobe.com) at no charge.
Software is warranted to be readable and functional upon receipt. This warranty shall not apply to equipment that has been repaired or altered outside of SBS facilities in any way as to, in the judgement of SBS, affect its reliability. Nor will it apply: if the equipment has been used in...
/or if the warranty period has expired. This description of SBS’ limited warranty is only a summary; please review the terms of the prod- uct warranty for specific coverage and exclusions.
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Always use proper Electrostatic Discharge (ESD) protection when han- dling printed circuit boards to avoid seriously damaging components. Product han- dlers must always be properly grounded. CM4 User’s Guide—SBS Technologies Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
• Information that is difficult to understand and needs further clarification • Information that was beneficial or that made the manual easier to use Print the form below, fill it out, and fax it to SBS Technologies (919 851-2844). Section...
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Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
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