upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 155

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

(4) 8-bit A/D conversion result register (ADCRH)
(5) Port mode register 2 (PM2) and port mode control register 2 (PMC2)
Address: FF22H
Symbol
Address: FF84H
Symbol
PMC2
PM2
This register is an 8-bit register that stores the A/D conversion result. It stores the higher 8 bits of a 10-bit
resolution result.
ADCRH can be read by an 8-bit memory manipulation instruction.
Reset signal generation makes ADCRH undefined.
When using the when the P20/ANI0/TI000/TOH1, P21/ANI1/TI010/TO00/INTP0, P22/ANI2, and P23/ANI3 pins
for analog input, set PM20 to PM23 and PMC20 to PMC23 to 1. At this time, the output latches of P20 to P23
may be 0 or 1.
PM2 and PMC2 are set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets PM2 to 00H and clears PMC2 to FFH.
Caution If PMC20 to PMC23 are set to 1, the P20/ANI0/TI000/TOH1, P21/ANI1/TIO10/TO00/INTP0,
PMC2n
PM2n
7
1
0
1
7
0
0
1
Address: FF1AH
ADCRH
Symbol
After reset: FFH
After reset: 00H
P22/ANI2, and P23/ANI3 pins cannot be used for any purpose other than the A/D converter
function.
Figure 9-7. Format of 8-Bit A/D Conversion Result Register (ADCRH)
Output mode (output buffer on)
Input mode (output buffer off)
Port/Alternate-function (except A/D converter) mode
A/D converter mode
Figure 9-9. Format of Port Mode Control Register 2 (PMC2)
6
1
6
0
7
Figure 9-8. Format of Port Mode Register 2 (PM2)
After reset: Undefined
R/W
R/W
6
5
1
5
0
CHAPTER 9 A/D CONVERTER
User’s Manual U16994EJ3V0UD
5
Operation mode specification (n = 0 to 3)
Pmn pin I/O mode selection (n = 0 to 3)
4
1
4
0
R
4
PMC23
PM23
3
3
3
2
PMC22
PM22
2
2
1
PMC21
PM21
1
1
0
PMC20
PM20
0
0
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