W78ERD2 Datasheet, PDF (27/72 Pages) Winbond – 8-BIT MICROCONTROLLER

W78ERD2
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: This register is used to capture the TH2 value when a timer 2 is
configured in capture mode. RCAP2H is also used as the HSB of a 16-bit reload value when timer 2 is
configured in auto-reload mode.
Timer 2 Register Low
Bit:
7
TL2.7
6
TL2.6
Mnemonic: TL2
TL2 Timer 2 LSB
5
TLH2.5
4
TL2.4
3
TL2.3
Address: CCh
2
TL2.2
1
TL2.1
0
TL2.0
Timer 2 Register High
Bit:
7
6
TH2.7 TH2.6
Mnemonic: TH2
TL2 Timer 2 MSB
5
TH2.5
4
TH2.4
3
TH2.3
Address: CDh
2
TH2.2
1
TH2.1
0
TH2.0
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 for an arithmetic operation which results in a carry being generated
from the ALU. It is also used as the accumulator for the bit operations.
6
AC
Auxiliary carry: Set when the previous operation resulted in a carry from the high
order nibble.
5
F0 User flag 0: The General purpose flag that can be set or cleared by the user.
4 RS1 Register bank select bits:
3 RS0 Register bank select bits:
2
OV
Overflow flag: Set when a carry was generated from the seventh bit but not from
the 8th bit as a result of the previous operation, or vice-versa.
1
F1
User Flag 1: The General purpose flag that can be set or cleared by the user by
software.
0
P
Parity flag: Set/cleared by hardware to indicate odd/even number of 1's in the
accumulator.
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Publication Release Date: April 20, 2005
Revision A4