UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 320

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(4) Analog input channel specification register (ADS)
320
Cautions 1. Be sure to clear bits 3 to 7 to “0”.
This register specifies the input channel of the analog voltage to be A/D converted.
ADS can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
2 Set a channel to be used for A/D conversion in the input mode by using port mode register 2
3. If data is written to ADS, a wait cycle is generated. Do not write data to ADS when the CPU is
(PM2).
operating on the subsystem clock and the peripheral hardware clock is stopped. For details,
see CHAPTER 35 CAUTIONS FOR WAIT.
Figure 13-8. Format of Analog Input Channel Specification Register (ADS)
Symbol
Address: FF29H
ADS
ADS2
0
0
0
0
0
1
1
1
1
7
After reset: 00H
ADS1
0
0
0
1
1
0
0
1
1
6
CHAPTER 13 A/D CONVERTER
User’s Manual U17260EJ6V0UD
ADS0
0
0
1
0
1
0
1
0
1
5
ANI0
ANI1
ANI2
ANI3
ANI4
ANI5
ANI6
ANI7
R/W
0
4
Analog input channel specification
0
3
ADS2
2
ADS1
1
ADS0
0