W79E225A Datasheet, PDF (57/200 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E225A/227A Data Sheet
BIT
NAME
FUNCTION
7~0 NVMDAT.7~NVMDAT.0 The NVM data write register. The read NVM data is by MOVX instruction.
QEI CONTROL REGISTER
Bit:
7
6
5
4
3
2
1
-
-
-
DISIDX DIR
QEIM1 QEIM0
Mnemonic: QEICON
Address: D4h
BIT NAME
FUNCTION
7-5 -
Reserved.
Disable Input Capture 2 edge detection function:
4
DISIDX
0 = Enable IC2 edge detection function (default).
1 = Disable IC2 edge detection function.
This bit is effective when QEIEN=1.
3 DIR
Direction index of motion detection bit:
1 = Forward (Up-counting).
0 = Backward (Down-counting).
This bit is writable and readable.
QEI mode select bits:
QEIM1 QEIM0 Descriptions
0
2-1 QEIM[1:0]
0
0 X4 free-counting mode
1 X2 free-counting mode
1
0 X4 compare-counting mode
1
1 X2 compare-counting mode
0 QEIEN
Input module mode select bit:
0 = Input module performs Input Capture Functions. (Default value).
1 = Input module works as QEI.
0
QEIEN
PWM 2 HIGH BITS REGISTER
Bit:
7
6
5
4
3
2
1
0
-
-
-
-
PWM2.11 PWM2.10 PWM2.9 PWM2.8
Mnemonic: PWM2H
Address: D5h
BIT
NAME
FUNCTION
7~4 -
Reserved
3~0 PWM2.11 ~PWM2.8 PWM 2 Register bit 11~8.
PWM 6 HIGH BITS REGISTER
Bit:
7
6
5
-
-
-
Mnemonic: PWM6H
4
-
3
2
1
0
PWM6.11 PWM6.10 PWM6.9 PWM6.8
Address: D6h
- 57 -
Publication Release Date: December 14, 2007
Revision A2.0