W78E052DDG Nuvoton Technology Corporation of America, W78E052DDG Datasheet - Page 21

• Manufacturer Part Number: W78E052DDG
• Description: IC MCU 8-BIT 8K FLASH 40-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E052DDG

• 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: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Mnemonic: P0UPR
Power Control
Mnemonic: PCON
Timer Control
Mnemonic: TCON
BIT
BIT
7
6
5
BIT
0
Bit:
7
6
5
4
3
2
1
0
Bit:
NAME
NAME
TF1
TR1
TF0
-
NAME
P0UP
SMOD
SMOD
0
-
POR
GF1
GF0
PD
IDL
7
SMOD
7
TF1
FUNCTION
FUNCTION
Timer 1 Overflow Flag. This bit is set when Timer 1 overflows. It is cleared auto-
matically when the program does a timer 1 interrupt service routine. Software can
also set or clear this bit.
Timer 1 Run Control. This bit is set or cleared by software to turn timer/counter on
or off.
Timer 0 Overflow Flag. This bit is set when Timer 0 overflows. It is cleared auto-
matically when the program does a timer 0 interrupt service routine. Software can
also set or clear this bit.
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-
1: Framing Error Detection Enable. SCON.7 (SM0/FE) bit is used to reflect as
Reserved
0: Cleared by software.
1: Set automatically when a power-on reset has occurred.
General purpose user flags.
General purpose user flags.
1: The CPU goes into the POWER DOWN mode. In this mode, all the clocks are
1: The CPU goes into the IDLE mode. In this mode, the clocks CPU clock stopped,
FUNCTION
0: Port 0 pins are open-drain.
1: Port 0 pins are internally pulled-up. Port 0 is structurally the same as Port 2.
-
6
SMOD0
6
TR1
dard 8052 function).
Frame Error (FE) status flag.
stopped and program execution is frozen.
so program execution is frozen. But the clock to the serial, timer and interrupt
blocks is not stopped, and these blocks continue operating.
-
5
-
5
TF0
W78E054D/W78E052D/W78E051D Data Sheet
-
4
POR
4
TR0
- 21 -
-
3
GF1
3
IE1
Publication Release Date: Dec 29, 2009
-
2
GF0
2
IT1
-
1
PD
1
IE0
Address: 86h
Address: 87h
Address: 88h
Revision A09
P0UP
0
IDL
0
IT0