Sharp FO-DC635U, Руководство по обслуживанию

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FO-DC635U
5 – 2
2.1.3 W9864G6EH-7 (IC25): pin-54, TSOP (64 Mbit SDRAM)
The program stored in the flash memory (IC12) mentioned in the
above item 2) is downloaded to this SDRAM and used as a program
execution memory. It is also used as various work memories and com-
munication buffers.
MMU
CPU
SCI
TMU
RTC
SCIF
ADC
DAC
UBC
AUD
BSC
DMAC
CMT
I/O PORT
EXTERNAL BUS
INTERFACE
Legend:
ADC:
AUD:
BSC:
CACHE:
CCN:
CMT:
CPG/WDT:
CPU:
DAC:
A/D converter
Advanced user debugger
Bus state controller
Cache memory
Cache memory controller
Compare match timer
Clock pulse generator/watchdog timer
Central processing unit
D/A converter
DMAC:
H-UDI:
INTC:
MMU:
RTC:
SCI:
SCIF:
TLB:
TMU:
UBC: Direct memory access controller
Hitachi user-debugging interface
Interrupt controller
Memory management unit
Realtime clock
Serial communication interface (with smart card interface)
Serial communication interface (with FIFO)
Address translation buffer
Timer unit
User break controller
TLB
CCN
LB
U
S
PERIPHERAL
BUS
1
PERIPHERAL
BUS
2
CACHE
H-UDI
INTC
CPG/WDT
BRIDGE
IB
U
S
1
IB
U
S
2
Fig. 2 HD6417706F133 BLOCK DIAGRAM