UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 295

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(6) Port mode register 8 (PM8)
(7) Port mode register 9 (PM9)
When using the P80/ANI0 to P87/ANI7 pins for analog input port, set PM80 to PM87 to 1. The output latches of
P80 to P87 at this time may be 0 or 1.
If PM80 to PM87 are set to 0, they cannot be used as analog input port pins.
PM8 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to FFH.
When using the P90/ANI8 to P93/ANI11 pins for analog input port, set PM90 to PM93 to 1. The output latches of
P90 to P93 at this time may be 0 or 1.
If PM90 to PM93 are set to 0, they cannot be used as analog input port pins.
PM9 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to FFH.
P80/ANI0 to P87/ANI7, P90/ANI8 to P93/ANI11 pins are as shown below depending on the settings of ADPC,
ADS, PM8 and PM9.
Address: FF28H
Symbol
PM8
Address: FF29H
Symbol
PM9
Analog input selection
Digital I/O selection
Table 13-3. Setting Functions of P80/ANI0 to P87/ANI7, P90/ANI8 to P93/ANI11 Pins
ADPC
PM87
PM8n
PM9n
7
0
1
7
1
0
1
After reset: FFH
After reset: FFH
Output mode (Output buffer on)
Input mode (Output buffer off)
Output mode (Output buffer on)
Input mode (Output buffer off)
Figure 13-10. Format of Port Mode Register 8 (PM8)
Figure 13-11. Format of Port Mode Register 9 (PM9)
Input mode
Output mode
Input mode
Output mode
PM86
6
6
1
PM8, PM9
R/W
R/W
CHAPTER 13 A/D CONVERTER
PM85
User’s Manual U17554EJ4V0UD
5
5
1
P8n pin I/O mode selection (n = 0 to 7)
P9n pin I/O mode selection (n = 0 to 3)
Selects ANI.
Does not select ANI.
Selects ANI.
Does not select ANI.
PM84
4
4
1
ADS
−
−
PM83
PM93
3
3
Analog input (to be converted)
Analog input (not to be converted)
Setting prohibited
Digital input
Digital output
PM82
PM92
2
2
P90/ANI8 to P93/ANI11 Pins
P80/ANI0 to P87/ANI7,
PM81
PM91
1
1
PM80
PM90
0
0
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