W77E532 Datasheet, PDF (31/86 Pages) Winbond – 8 BIT MICROCONTROLLER

W77E532/W77E532A
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 PX5 PX4 PX3 PX2
Mnemonic: EIP
Address: F8h
EIP.7-5: Reserved bits.
PWDI:Watchdog timer interrupt priority.
PX5: External Interrupt 5 Priority. 0 = Low priority, 1 = High priority.
PX4: External Interrupt 4 Priority. 0 = Low priority, 1 = High priority.
PX3: External Interrupt 3 Priority. 0 = Low priority, 1 = High priority.
PX2: External Interrupt 2 Priority. 0 = Low priority, 1 = High priority.
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Publication Release Date: June 30, 2009
Revision A10