UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 319

• 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

(3) 8-bit A/D conversion result register (ADCRH)
Cautions 1. When writing to the A/D converter mode register (ADM), analog input channel specification
This register is an 8-bit register that stores the A/D conversion result. The higher 8 bits of 10-bit resolution are
stored.
ADCRH can be read by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
2. If data is read from ADCRH, a wait cycle is generated. Do not read data from ADCRH when
Address: FF09H
ADCRH
Symbol
register (ADS), and A/D port configuration register (ADPC), the contents of ADCRH may
become undefined.
writing to ADM, ADS, and ADPC. Using timing other than the above may cause an incorrect
conversion result to be read.
the CPU is operating on the subsystem clock and the peripheral hardware clock is stopped.
For details, see CHAPTER 35 CAUTIONS FOR WAIT.
Figure 13-7. Format of 8-Bit A/D Conversion Result Register (ADCRH)
7
After reset: 00H
6
Read the conversion result following conversion completion before
CHAPTER 13 A/D CONVERTER
User’s Manual U17260EJ6V0UD
5
R
4
3
2
1
0
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