W78ERD2_07 Datasheet, PDF (26/76 Pages) Winbond – 8-BIT MICROCONTROLLER

W78ERD2/W78ERD2A
PCA Module 4 Register
Bit:
7
6
5
4
- ECOM4 CAPP4 CAPN4
3
MAT4
Mnemonic: CCAPM4 Address: DEh
2
TOG4
1
0
PWM4 ECCF4
Clock Control Register
Bit:
7
6
5
4
3
2
-
-
T2M T1M T0M
-
Mnemonic: CKCON
Address: DFh
1
0
-
MD
BIT NAME
FUNCTION
7
- Reserved
6
- Reserved
Timer 2 clock select:
0 = Divide-by-6 clock
5
T2M
1 = Divide-by-12 clock
This bit has no effect if option bit 3 is set to 1 to select 12 clocks / machine cycle.
Timer 1 clock select:
0 = Divide-by-6 clock
4
T1M
1 = Divide-by-12 clock
This bit has no effect if option bit 3 is set to 1 to select 12 clocks / machine cycle.
Timer 0 clock select:
0 = Divide-by-6 clock
3
T0M
1 = Divide-by-12 clock
This bit has no effect if option bit 3 is set to 1 to select 12 clocks / machine cycle.
2
- Reserved
1
- Reserved
Stretch MOVX select bits: This bit is used to select the stretch value for the MOVX
instruction, which enables the microcontroller to access slower memory devices or
0
MD peripherals transparently and without the need for external circuits. The RD or WR
strobe and all internal timings are stretched by the selected interval. The default
value is 1 cycle. For faster access, set the value to 0.
CKCON has an unrestricted read access, however, the write access is protected by timed-access
protection. See the section of timed-access protection for more information.
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