Philips CEM3000B Service Manual page 67

S5L8035Ui (Preliminary Spec)
FEATURES (CONTINUED)
Memory Controller
• Supports 16-bit or 8-bit data bus width for 16M
SDRAM interface. (up to 128Mbits)
• SDRAM Interface Supports four bank, 8-bit or
16-bit data, burst(up to 16burst) mode SDRAM.
• Supports Serial-Flash interface
• Supports 4-bit or 8-bit or 16bit data bus width for
EDO interface. (up to 64Mbits)
Supports 3.5Mbit Internal ROM interface
•
• Supports 32KB Internal SRAM interface
• Fully Programmable access cycles for all
memories.
Clock & Power Manager
• Low power consumption
• On-chip PLLs
• Clock can be fed selectively to each function
block by software.
• Power mode: Normal, Slow, Idle, stop, power
down mode.
• Normal mode: normal operating mode.
• Slow mode: Low frequency clock without PLL.
• Idle mode: Stop CPU clock only
• Stop mode: Stop all clock
• Power down mode: Power off chip
• Wake up by interrupt from Idle mode.
• Wake up by external interrupt from Stop mode.
• Wake up by external Host or Key from Power
down mode.
• S/W Reset by MCU for Peripheral module reset.
Interrupt Controller
• 32 interrupt sources
(Watch dog timer, 4 Timers, UART, 4 External
interrupts, IIC, IIS, SPI, IR ...)
• Edge detect mode on external interrupt source.
• Programmable polarity of rising and falling.
• Supports FIQ (Fast Interrupt request) for very
urgent interrupt request.
Timers
• 16-bit timer 1, 2
– Interval, free run, one shot and capture mode
– Programmable duty cycle, frequency and
polarity.
• 16-bit timer 3, 4
– Interval mode and free run mode
– Supports external clock source.
• 32-bit SCR timer
General Purpose Input/Output Ports
• 1 external interrupt port(extension possible to 4
ports)
• Up to 36 multiplexed input/output ports
IIC-BUS Interface
• 1-channel multi-master IIC-Bus.
• Serial, 8-bit oriented and bi-directional data
transfers can be made at up to 100 Kbit/s
(standard mode) or up to 400 Kbit/s (fast mode)
UART
• channel UART with DMA-based or interrupt-
based operation
• Supports 5, 6, 7 or 8-bit serial data
transmit/receive
• Supports H/W handshaking during
transmit/receive
• Programmable baud rate
• Loop back mode for testing
• Internal 16-byte Tx FIFO and 16-byte Rx FIFO
• Max 1.5Mbps burst transmit/receive rate used by
IODMA
PRODUCT OVERVIEW
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