W78E516DPG Nuvoton Technology Corporation of America, W78E516DPG Datasheet - Page 17

• 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
The W78E516D/W78E058D series uses Special Function Registers (SFRs) to control and monitor
peripherals and their Modes. The SFRs reside in the register locations 80-FFh and are accessed by
direct addressing only. Some of the SFRs are bit addressable. This is very useful in cases where
users wish to modify a particular bit without changing the others. The SFRs that are bit addressable
are those whose addresses end in 0 or 8. The W78E516D/W78E058D series contain all the SFRs
present in the standard 8052. However some additional SFRs are added. In some cases the unused
bits in the original 8052, have been given new functions. The list of the SFRs is as follows.
W78E516D/W78E058D Special Function Registers (SFRs) and Reset Values
Note: 1.The SFRs marked with a plus sign(+) are both byte- and bit-addressable.
E8
E0
D8
D0
C8
C0
B8
B0
A8
A0
F8
F0
98
90
88
80
2. The text of SFR with bold type characters are extension function registers.
SPECIAL FUNCTION REGISTERS
00000000
00000000
xxxx1111
00000000
00000000
00000000
00000000
11111111
00000000
11111111
00000000
11111111
00000000
11111111
+T2CON
+SCON
+TCON
XICON
+PSW
+ACC
+P4
+P3
+P2
+P1
+P0
+IP
+IE
+B
00000000
00000000
00000111
+T2MOD
xxxxxxxx
TMOD
SBUF
SP
Figure 9-1: Special Function Register Location Table
Preliminary W78E516D/ W78E058D Data Sheet
00000000
00000000
00000000
00000000
P4CONA
RCAP2L
DPL
TL0
00000000
00000000
00000000
00000000
P4CONB
RCAP2H
DPH
TL1
- 17 -
00000000
00000000
00000000
00000000
00000000
00000000
00000000
SFRAL
P43AL
P42AL
P41AL
P40AL
TH0
TL2
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Publication Release Date: July 30, 2008
SFRAH
P43AH
P42AH
P41AH
P40AH
TH2
TH1
11110110
00000000
0000xx00
00000000
00000000
CHPENR
P2ECON
SFRFD
AUXR
POR
00000000
CHPCON
0xx00000
00000000
00110000
SFRCN
WDTC
PCON
Revision A01
EF
DF
D7
CF
C7
BF
AF
FF
F7
E7
B7
A7
9F
97
8F
87