W78ERD2_07 Datasheet, PDF (24/76 Pages) Winbond – 8-BIT MICROCONTROLLER

W78ERD2/W78ERD2A
Timer 2 Capture High
Bit:
7
6
5
4
3
2
1
0
RCAP2H.7 RCAP2H.6 RCAP2H.5 RCAP2H.4 RCAP2H.3 RCAP2H.2 RCAP2H.1 RCAP2H.0
Mnemonic: RCAP2H Address: CBh
RCAP2H Timer 2 Capture HSB: In capture mode, RCAP2H is used to capture the TH2 value. In auto-
reload mode, RCAP2H is used as the MSB of the 16-bit reload value.
Timer 2 Register Low
Bit:
7
TL2.7
6
TL2.6
5
TLH2.5
4
TL2.4
3
TL2.3
2
TL2.2
1
TL2.1
0
TL2.0
Mnemonic: TL2
TL2 Timer 2 LSB
Address: CCh
Timer 2 Register High
Bit:
7
6
TH2.7 TH2.6
5
TH2.5
4
TH2.4
3
TH2.3
2
TH2.2
1
TH2.1
0
TH2.0
Mnemonic: TH2
TL2 Timer 2 MSB
Address: CDh
Program Status Word
Bit:
7
6
5
4
3
2
1
0
CY
AC
F0
RS1
RS0
OV
F1
P
Mnemonic: PSW
Address: D0h
BIT NAME
FUNCTION
7
CY
Carry flag: Set when an arithmetic operation results in a carry being generated from
the ALU. It is also used as the accumulator for bit operations.
6
AC
Auxiliary carry: Set when the previous operation resulted in a carry from the high
order nibble.
5
F0 General–purpose, user-defined flag 0.
4 RS1 Register bank select bits: See below.
3 RS0 Register bank select bits: See below.
2
OV
Overflow flag: Set when a carry was generated from the seventh bit but not from the
eighth bit as a result of the previous operation, or vice-versa.
1
F1 General–purpose, user-defined flag 1.
0
P
Parity flag: Set and cleared by the hardware to indicate an odd or even number,
respectively, of 1's in the accumulator.
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