Sony BCU-100 Maintenance Manual page 21

(3) SCC : South bridge
High performance chip mounted with each type of
peripheral.
. Clock
. Core reference clock : SB_SYSCLK (66 MHz)
. IO reference clock : SB_RC_REFCLK (500 MHz)
. Power system
. Core
V3P3_SB_VDDC : Core power supply
. FlexIO
V1P5_LREG_SB_RC_VDDA :
Analog power supply for FlexIO
V1P2_SB_VDDR : IO power supply for FlexIO
. Clock
V2P5_SB_PLL_VDDC
. IO
V3P3_SB_VDDIO: Power supply for each IO.
For more information about each peripheral, refer to
"Overall Block Diagram".
(4) XDR: Main memory
Memory is composed of 16 pieces of 512 Mbit XDR
memory and 2 pieces of memory for ECC for a total of
18 pieces of memory with 1 GByte total capacity for
the main memory. The 18 pieces of XDR memory
consist of the following configuration. Each of the two
XIO ports on the Cell/B.E. chip contains 8 pieces of
memory for data and 1 piece for ECC. One piece of
XDR memory has a configuration of 4 bit width x 128
M. Each port can hold 32 bit data and 4 bit in ECC.
. Clock
. BE_Y0_RQ_CTM (400 MHz)
. BE_Y1_RQ_CTM (400 MHz)
. Power system
. V1P8_VDD_MEM0
. V1P8_VDD_MEM1
2. Peripheral
The functions for each type of peripheral are mounted
mainly on the south bridge chip SCC (IC4001). SCC is
connected to Cell/B.E. by the FlexIO bus, and high speed
data transfer is possible.
(1) NETWORK-1 (Gigabit Ethernet)
The main network port, NETWORK-1, is composed of
MAC and the PHY chip (IC4101) in SCC.
Power supplies required for PHY chip:
. V3P3_ETHPHY IC7701
. V2P5_ETHPHY IC7707
. V1P8_ETHPHY IC7706
(2) NETWORK-2 (Gigabit Ethernet)
The port used for system management, NETWORK-2,
connects to the GBE chip (IC4304) on the PCI bus in
SCC.
The MAC address for NETWORK-2 is written to
EEPROM (M93C46-WDW6TP, IC4306).
BCU-100 MM
(3) PCI-Express
PCI-Express is provided to mount memory extension
adapter BKCU-EX1 or optional cards such as the
InfiniBand card. These cards are mounted via the
extension board (EX-1076 standard equipment). The
PCI-Express connector (CN4303) is mounted with a
16 lane standard connector, but only four of the lanes
are valid.
(4) PCI bus
The PCI connector (CN4301) is a special connector
and is considered "No Mount" for BCU-100.
(5) DDR2 memory
There are 16 pieces (IC8701-8708, IC8801-8808) of
64 M x 8 bit DDR2-SDRAM memory for a total of 1
GByte built-in memory.
The power supply (V1P8_SB_DDR2_VDDIO) for
DDR2 memory is generated by the DC/DC converter
(Controller : SN105233DBTR, IC7604).
(6) USB
There are a total of three USB ports:
. Front 1 port : MAINTENANCE Connector
(CN101 : Mounted to the KY-631
. Rear 2 ports : USB Connector
(CN4100 : Mounted to the BE-28
The front USB port is used for maintenance, but even
though it is called the "MAINTENANCE" connector,
it is a USB port. The front USB connects directly to
the SCC chip (IC4001), while the rear USB connects
via the USB-HUB chip (IC4109).
(7) Serial port (RS-232C)
This is the serial terminal for connection to an external
PC.
. Front (CN202 : Mounted on the KY-631 board)
. Rear (CN4301 : Mounted on the BE-28 board)
For the RS-232C configuration, refer to "BCU-100
Serial Diagram".
(8) ATA
SCC outputs via two ports: PATA0 and PATA1. HDD
uses SATA interface standard, but the PATA0 port can
be connected through a PATA/SATA conversion chip.
. PATA1
CN4206 (No Mount)
. SATA0 (Master)
CN4201 Bridge chip (IC4201)
. SATA0 (Slave)
CN4202 (No Mount) Bridge chip (IC4203 No Mount)
(9) SB expansion bus
The expansion bus connects to the following devices:
. EBUS Connector (CN4403)
. NAND Flash Memory (IC4428, IC4431 No Mount)
and controller (IC4429 No Mount)
board)
board)
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