W78E516DDG Datasheet, PDF (20/90 Pages) Nuvotem Talema – 8-BIT MICROCONTROLLER

W78E516D/W78E058D Data Sheet
DPH.7
Mnemonic: DPH
BIT NAME
7-0 DPH.[7:0]
DPH.6
DPH.5
DPH.4
DPH.3
DPH.2
FUNCTION
This is the high byte of the standard 8052 16-bit data pointer.
DPH.1
DPH.0
Address: 83h
P4.0 Base Address Low Byte Register
Bit: 7
6
5
4
3
2
1
0
P40AL.7 P40AL.6 P40AL.5 P40AL.4 P40AL.3 P40AL.2 P40AL.1 P40AL.0
Mnemonic: P40AL
Address: 84h
BIT NAME
FUNCTION
7-0 P40AL.[7:0] The Base address register for comparator of P4.0. P40AL contains the low-
order byte of address.
P4.0 Base Address High Byte Register
Bit: 7
6
5
4
3
2
1
0
P40AH.7 P40AH.6 P40AH.5 P40AH.4 P40AH.3 P40AH.2 P40AH.1 P40AH.0
Mnemonic:P40AH
Address: 85h
BIT NAME
FUNCTION
7-0 P40AH.[7:0] The Base address register for comparator of P4.0. P40AH contains the High-
order byte of address.
Port 0 Pull up Option Register
Bit: 7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
P0UP
Mnemonic: P0UPR
Address: 86h
BIT NAME FUNCTION
0 P0UP 0: Port 0 pins are open-drain.
1: Port 0 pins are internally pulled-up. Port 0 is structurally the same as Port 2.
Power Control
Bit: 7
6
5
4
3
2
1
0
SMOD
SMOD0 -
-
GF1
GF0
PD
IDL
Mnemonic: PCON
Address: 87h
BIT NAME
7 SMOD
6 SMOD
0
FUNCTION
1: This bit doubles the serial port baud rate in mode 1, 2, and 3 when set to 1.
0: Framing Error Detection Disable. SCON.7 (SM0/FE) bit is used as SM0 (stan-
dard 8052 function).
1: Framing Error Detection Enable. SCON.7 (SM0/FE) bit is used to reflect as
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