322
5.19.9
Port A
PAn
R
PAnPCR
C
Q
D
Reset
Mode 4
Mode 4
Mode 7
Mode 7
WPCRA
S
AmE
PFCR1
C
Q
D
Set
WPFCR1
RPCRA
RPFCR1
R
PAnDDR
C
Q
D
Reset
WDDRA
R
PAnDR
C
Q
D
Reset
WDRA
R
PAnODR
C
Q
D
Reset
WODRA
Modes 1, 2, 5, 6
RDRA
RPORA
RODRA
System controller
EXPE
WDDRA: Write to PADDR
WDRA:
Write to PADR
WODRA: Write to PAODR
WPCRA: Write to PAPCR
WPFCR1: Write to PFCR1
n = 0, 1, 2, 3, 4
m = 16, 17, 18, 19, 20
RPORA: Read port A
RDRA: Read
PADR
RODRA: Read
PAODR
RPCRA: Read
PAPCR
RPFCR1: Read PFCR1
Notes: 1. Output enable signal
2. Open drain control signal
*
1
*
2
Internal data bus
Internal address bus
Modes 1, 2, 5, 6
Figure 5.44 Port A Block Diagram (a) (Pins PA0 to PA4)
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