250
PFCR1 is an 8-bit readable/writable register that performs I/O port control. All the bits are valid in
modes 4 and 7, and bits 7 to 5 are valid in modes 1, 2, 5, and 6. PFCR1 is initialized to H'FF by a
reset and in hardware standby mode. It retains its prior state in software standby mode.
Bit 7—Address 23 Enable (A23E): Enables or disables output for address output 23 (A23).
Bit 7
A23E
Description
0
DR output when PA7DDR = 1
1
A23 output when PA7DDR = 1
(Initial value)
Bit 6—Address 22 Enable (A22E): Enables or disables output for address output 22 (A22).
Bit 6
A22E
Description
0
DR output when PA6DDR = 1
1
A22 output when PA6DDR = 1
(Initial value)
Bit 5—Address 21 Enable (A21E): Enables or disables output for address output 21 (A21).
Bit 5
A21E
Description
0
DR output when PA5DDR = 1
1
A21 output when PA5DDR = 1
(Initial value)
Bit 4—Address 20 Enable (A20E): Enables or disables output for address output 20 (A20). Valid
only in modes 4 and 7.
Bit 4
A20E
Description
0
DR output when PA4DDR = 1
1
A20 output when PA4DDR = 1
(Initial value)
Bit 3—Address 19 Enable (A19E): Enables or disables output for address output 19 (A19). Valid
only in modes 4 and 7.
Bit 3
A19E
Description
0
DR output when PA3DDR = 1
1
A19 output when PA3DDR = 1
(Initial value)
Summary of Contents for H8S/2670
Page 5: ......
Page 9: ......
Page 199: ...182 ...
Page 361: ...344 ...
Page 393: ...376 ...
Page 647: ...630 ...