UPD78F9500MA-CAC-A Datasheet, PDF (71/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

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CHAPTER 4 PORT FUNCTIONS
Figure 4-14. Format of Port Mode Control Register 2 (μPD78F920x only)
Address: FF84H, After reset: R/W
Symbol
7
6
5
PMC2
0
0
0
4
3
2
1
0
PMC23
PMC22
PMC21
0
PMC20
PMC2n
0
1
Specification of operation mode (n = 0 to 3)
Port/alternate-function (except the A/D converter function) mode
A/D converter mode
Caution When PMC20 to PMC23 are set to 1, the port function on the P20/ANI0 to P23/ANI3 pins cannot
be used. Moreover, be sure to set the pull-up resistor option registers (PU20 to PU23) to 0 for the
pins set to A/D converter mode.
Table 4-4. Setting of Port Mode Register, Port Register (Output Latch), and Port Mode Control Register
When Alternate Function Is Used
Port Name
P20
P21
P22
P23
P32
ANI0^Note
TI000^Note
TOH1
ANI1^Note
TI010^Note
TO00 ^Note
INTP0
ANI2^Note
ANI3^Note
INTP1
Alternate-Function Pin
Name
I/O
Input
Input
Output
Input
Input
Output
Input
Input
Input
Input
PM××
1
1
0
1
1
0
1
1
1
1
P××
PMC2n
Note
(n = 0 to 3)
×
1
×
0
0
0
×
1
×
0
0
0
×
0
×
1
×
1
×
−
Note μPD78F920x only
Remark
×:
don’t care
PM××: Port mode register, P××: Port register (output latch of port)
PMC2×: Port mode control register
User’s Manual U18172EJ3V0UD
69