W79E632A Datasheet, PDF (25/79 Pages) Winbond – 8-BIT MICROCONTROLLER

W79E632A/W79L632A
Extended Interrupt Enable
Bit:
7
6
5
4
3
2
1
0
-
-
-
EWDI
-
-
-
-
Mnemonic: EIE
Address: E8h
EIE.7-5: Reserved bits, will read high
EWDI: Enable Watchdog timer interrupt
B Register
Bit:
7
6
5
4
3
2
1
0
B.7
B.6
B.5
B.4
B.3
B.2
B.1
B.0
Mnemonic: B
Address: F0h
B.7-0: The B register is the standard 8052 register that serves as a second accumulator.
Extended Interrupt Priority
Bit:
7
6
5
4
3
2
1
0
-
-
-
PWDI
-
-
-
-
Mnemonic: EIP
EIP.7-5: Reserved bits.
PWDI: Watchdog timer interrupt priority.
Address: F8h
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Publication Release Date: Nov. 11, 2009
Revision A10