HD6433308 HITACHI [Hitachi Semiconductor], HD6433308 Datasheet - Page 237

• Manufacturer Part Number: HD6433308
• Description: Hitachi Single-Chip MicroComputer
• Manufacturer: HITACHI [Hitachi Semiconductor]

11.1.2 Block Diagram
Figure 11-1 shows a block diagram of the dual-port RAM.
PCCSR: Parallel Communication Control/Status Register
PCDR0: Parallel Communication Data Register 0
PCDR1 to 14 : Paralle Communication Data Register 1 to 14
Internal
data bus
MWEI
MREI
Bus interface
P
C
C
S
R
Figure 11-1. Block Diagram of Dual-Port RAM
P
C
D
R
0
A
P
C
D
R
0
B
Module data bus
P
C
D
R
1
to
226
14
P
C
D
R
Bus interface
RDY
DDB
RS3 to RS0
CS
OE
WE
7
to DDB
0