SH7144 Datasheet, PDF (561/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

Register Bit
PACRH 12
PACRH 10
PACRH 8
PACRH 7
PACRH 6
PACRH 5
PACRH 4
PACRH 3
PACRH 2
Initial
Bit Name Value R/W
PA22MD 0*³
R/W
PA21MD 0
R/W
PA20MD 0
R/W
PA19MD1 0
R/W
PA19MD0 0
R/W
PA18MD1 0
R/W
PA18MD0 0
R/W
PA17MD1 0
R/W
PA17MD0 0
R/W
Description
PA22 Mode
Select the function of the PA22/WRHL pin.
0: PA22 I/O (port)
1: WRHL output (BSC)
PA21 Mode
Select the function of the PA21 pin.
0: PA21 I/O (port)
1: Setting prohibited
PA20 Mode
Select the function of the PA20 pin.
0: PA20 I/O (port)
1: Setting prohibited
PA19 Mode
Select the function of the PA19/BACK/DRAK1 pin.
00: PA19 I/O (port)
01: BACK output (BSC)
10: DRAK1 output (DMAC)
11: Setting prohibited
PA18 Mode
Select the function of the PA18/BREQ/DRAK0 pin.
00: PA18 I/O (port)
01: BREQ input (BSC)
10: DRAK0 output (DMAC)
11: Setting prohibited
PA17 Mode
Select the function of the PA17/WAIT pin.
00: PA17 I/O (port)
01: WAIT input (BSC)
10: Setting prohibited
11: Setting prohibited
Rev. 2.0, 09/02, page 521 of 732