W77E058A40PL Nuvoton Technology Corporation of America, W77E058A40PL Datasheet - Page 48

• Manufacturer Part Number: W77E058A40PL
• Description: IC MCU 8-BIT 32K FLASH 44-PLCC
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W77r

Specifications of W77E058A40PL

• Program Memory Type: FLASH
• Program Memory Size: 32KB (32K x 8)
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, Serial Port
• Peripherals: POR, WDT
• Number Of I /o: 36
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Cpu Family: W77
• Device Core: 8051
• Device Core Size: 8b
• Frequency (max): 40MHz
• Interface Type: UART
• Total Internal Ram Size: 1KB
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

Table 6. SFR Reset Value
The WDCON SFR bits are set/cleared in reset condition depending on the source of the reset.
WDCON
The POR bit WDCON.6 is set only by the power on reset. However, a power-on reset will clear this bit.
The WTRF bit WDCON.2 is set when the Watchdog timer causes a reset. A power on reset will also
clear this bit. The EWT bit WDCON.1 is cleared by power on resets. This disables the Watchdog timer
resets. A watchdog or external reset does not affect the EWT bit.
SFR NAME
ROMMAP
SADDR1
CKCON
SCON1
PCON
TCON
TMOD
SCON
DPH1
DPL1
SBUF
DPH
EXIF
DPL
DPS
TH0
TH1
TL0
TL1
SP
P0
P1
P2
P4
External reset
0x0x0xx0b
RESET VALUE
11111111b
00000111b
00000000b
00000000b
00000000b
00000000b
00000000b
00xx0000b
00000000b
00000000b
00000000b
00000000b
00000000b
00000000b
00000001b
11111111b
00000000b
11111111b
00000000b
00000000b
01xxx110b
0000xxx0b
xxxx1111b
xxxxxxxxb
Watchdog reset
0x0x01x0b
- 48 -
SFR NAME
RCAP2H
RCAP2L
WDCON
SADEN1
STATUS
SADDR
T2MOD
SADEN
T2CON
SBUF1
PSW
ACC
PMR
TH2
TL2
EIE
EIP
P3
TA
PC
IE
IP
B
Power on reset
01000000b
RESET VALUE
W77E058A
00000000b
00000000b
11111111b
x0000000b
00000000b
00000000b
00000x00b
00000000b
00000000b
00000000b
00000000b
11111111b
00000000b
00000000b
00000000b
00000000b
00000000b
0x0x0xx0b
xxx00000b
000x0000b
xxx00000b
010xx0x0b
xxxxxxxxb