LAPIS Semiconductor ML610472, User Manual

Page: 56 / 281

ML610471/472/473/Q471/Q472/Q473 User's Manual
Chapter 4 MCU Control Function
4-8
4.2.7 Block Control Register 4 (BLKCON4)
Address: 0F02CH
Access: R/W
Access size: 8-bit
Initial value: 00H
7 6 5 4 3 2 1 0
BLKCON4 — DLCD — — — — DRAD —
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
BLKCON4 is a special function register (SFR) to control each block operation.
[Description of Bits]
•
DRAD (bit 1)
The DRAD bit is used to control the RC oscillation type A/D converter operation.
DRAD Description
0 Enable operating RC oscillation type A/D converter (initial value)
1 Disable operating RC oscillation type A/D converter
•
DLCD (bit 6)
The DLCD bit is used to control LCD driver operation.
DLCD Description
0 Enable operating LCD driver (initial value)
1 Disable operating LCD driver
Note:
•When any flag is set to "1" (disable operation), the function of the applicable block is reset (all registers are
initialized) and the clock supply to such block stops. When this flag is set to "1", the writing to all registers in the
applicable block becomes invalid, and thus the reading from such register becomes the initial value. When using the
function of the applicable block, ensure to reset the applicable flag of this block control register to "0" (enable
operation).
•See Chapter 19, “LCD Driver” for detail about operation of LCD driver.
•See Chapter 18, “RC Oscillation Type A/D Converter” for detail about operation of RC oscillation type A/D
converter.