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4.13 External Pin Control Register 1 (EPCR1)
4.13 External Pin Control Register 1 (EPCR1)
External pin control register 1 (EPCR1) controls address signal output.
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Configuration of External Pin Control Register 1 (EPCR1)
External pin control register 1 (EPCR1) is configured as follows:
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Bit Functions of External Pin Control Register 1 (EPCR1)
[bit 8 to 0] AE24 to AE16 (Address output Enable 24 to 16)
The AE24 to AE16 bits specify whether to output the corresponding addresses.
When the output is inhibited, the register can be used as an I/O port.
0: Inhibits output.
1: Permits output (initial value).
AE24 to AE16 are reset to "1FF
H
".
15 14 13 12 11 10 9 8
EPCR1 AE24 -------1 W
Address: 0000 062A
H
76543210
AE23 AE22 AE21 AE20 AE19 AE18 AE17 AE16 11111111 W
Initial value
Initial value
Access
Access