Hitachi H8/3048 Hardware Manual page 277

Table 9-11 Port 6 Pin Functions in Modes 1 to 6
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Pin Pin Functions and Selection Method
P6 /LWR Functions as follows regardless of P6
6
P6
6
Pin function
P6 /HWR Functions as follows regardless of P6
5
P6
5
Pin function
P6 /RD Functions as follows regardless of P6
4
P6
4
Pin function
P6 /AS Functions as follows regardless of P6
3
P6
3
Pin function
P6 /BACK Bit BRLE in BRCR and bit P6
2
BRLE
P6
2
Pin function
P6 /BREQ Bit BRLE in BRCR and bit P6
1
BRLE
P6
1
Pin function
P6 /WAIT Bits WCE7 to WCE0 in WCER, bit WMS1 in WCR, and bit P6
0
pin function as follows
WCER
WMS1
P6
0
Pin function
Note: * Do not set bit P6
DDR
DDR
DDR
DDR
DDR 0
P6 input
2
DDR 0
P6 input
1
DDR 0
P6 input
0
DDR to 1.
0
264
DDR
6
0
LWR output
DDR
5
0
HWR output
DDR
4
0
RD output
DDR
3
0
AS output
DDR select the pin function as follows
2
0
1
P6 output
2
DDR select the pin function as follows
1
0
1
P6 output
1
All 1s
0 1
1 0*
P6 output
0
1
1
1
1
1
—
BACK output
1
—
BREQ input
DDR select the
0
Not all 1s
—
0*
WAIT input