C.11 Port E Block Diagram; Port E Block Diagram - Hitachi H8S/2646 Hardware Manual

C.11

Port E Block Diagram

PEn
Legend
WDDRE
WDRE
WPCRE
RDRE
RPORE
RPCRE
n= 0 to 7
Figure C-11 Port E Block Diagram (Pins PE0 to PE7)
1100
External address
write
Mode 7
Mode 4/5/6
: Write to PEDDR
: Write to PEDR
: Write to PEPCR
: Read PEDR
: Read port E
: Read PEPCR
Reset
R
Q D
PEnPCR
C
WPCRE
RPCRE
Reset
R
Q D
PEnDDR
C
WDDRE
Reset
R
Q D
PEnDR
C
WDRE
RDRE
RPORE
External addres lower read