W78E516DPG Nuvoton Technology Corporation of America, W78E516DPG Datasheet - Page 19

• Manufacturer Part Number: W78E516DPG
• Description: IC MCU 8-BIT 64K FLASH 44-PLCC
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E516DPG

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 36
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

9.1
Port 0
Mnemonic: P0
STACK POINTER
Mnemonic: SP
DATA POINTER LOW
Mnemonic: DPL
DATA POINTER HIGH
Mnemonic: DPH
Bit:
BIT
7-0
Bit:
BIT
7-0
Bit:
BIT
7-0
Bit:
TCON
PCON
POR
P40AH
P40AL
DPH
DPL
SP
P0
SFR Detail Bit Descriptions
NAME
P0.[7:0]
NAME
SP.[7:0]
NAME
DPL.[7:0]
7
P0.7
7
SP.7
7
DPL.7
7
DPH.7
Timer control
Power control
Port option register
HI address comparator of P4.0
LO address comparator of P4.0
Data pointer high
Data pointer low
Stack pointer
Port 0
Port 0 is an open-drain bi-directional I/O port. This port also provides a multiplexed low order
FUNCTION
address/data bus during accesses to external memory.
FUNCTION
The Stack Pointer stores the Scratch-pad RAM address where the stack begins. In other
words it always points to the top of the stack.
6
6
6
P0.6
SP.6
DPL.6
6
DPH.6
FUNCTION
This is the low byte of the standard 8052 16-bit data pointer.
Preliminary W78E516D/ W78E058D Data Sheet
5
P0.5
5
SP.5
5
DPL.5
5
DPH.5
88H
87H
86H
85H
84H
83H
82H
81H
80H
4
P0.4
4
SP.4
4
DPL.4
4
DPH.4
(8F)
TF1
SMOD
(87)
- 19 -
(8E)
TR1
SMOD0
(86)
3
3
3
P0.3
SP.3
DPL.3
3
DPH.3
(8D)
TF0
-
(85)
Publication Release Date: July 30, 2008
2
P0.2
2
SP.2
2
DPL.2
2
DPH.2
(8C)
TR0
-
(84)
(8B)
IE1
GF1
(83)
1
P0.1
1
SP.1
1
DPL.1
1
DPH.1
(8A)
IT1
GF0
(82)
Address: 82h
Address: 80h
Address: 81h
Address: 83h
(89)
IE0
PD
(81)
Revision A01
0
P0.0
0
SP.0
0
DPL.0
0
DPH.0
(88)
IT0
P0UP
(80)
IDL
0000 0000B
00xx 0000B
0000 0000B
0000 0000B
0000 0000B
0000 0000B
0000 0000B
0000 0111B
1111 1111B