W77E058A40DL Nuvoton Technology Corporation of America, W77E058A40DL Datasheet - Page 17

• Manufacturer Part Number: W77E058A40DL
• Description: IC MCU 8-BIT 32K FLASH 40-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W77r

Specifications of W77E058A40DL

• 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: 32
• 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: 40-DIP
• 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: Through Hole
• Pin Count: 40
• Package Type: PDIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

Port 1
P1.7-0: General purpose I/O port. Most instructions will read the port pins in case of a port read
External Iinterrupt Flag
IE5: External Interrupt 5 flag. Set by hardware when a falling edge is detected on INT5 .
IE4: External Interrupt 4 flag. Set by hardware when a rising edge is detected on INT4.
IE3: External Interrupt 3 flag. Set by hardware when a falling edge is detected on INT3 .
IE2: External Interrupt 2 flag. Set by hardware when a rising edge is detected on INT2.
XT/ RG : Crystal/RC Oscillator Select. Setting this bit selects crystal or external clock as system clock
RGMD: RC Mode Status. This bit indicates the current clock source of microcontroller. When cleared,
RGSL: RC Oscillator Select. This bit selects the clock source following a resume from Power Down
access, however in case of read-modify-write instructions, the port latch is read. Some pins
also have alternate input or output functions. This alternate functions are described below:
P1.0 : T2
P1.1 : T2EX
P1.2 : RXD1
P1.3 : TXD1
P1.4 : INT2
P1.5 : INT3
P1.6 : INT4
P1.7 : INT5
source. Clearing this bit selects the on-chip RC oscillator as clock source. XTUP(STATUS.4)
must be set to 1 and XTOFF (PMR.3) must be cleared before this bit can be set. Attempts to
set this bit without obeying these conditions will be ignored. This bit is set to 1 after a power-
on reset and unchanged by other forms of reset.
CPU is operating from the external crystal or oscillator. When set, CPU is operating from the
on-chip RC oscillator. This bit is cleared to 0 after a power-on reset and unchanged by other
forms of reset.
Mode. Setting this bit allows device operating from RC oscillator when a resume from Power
Down Mode. When this bit is cleared, the device will hold operation until the crystal oscillator
has warmed-up following a resume from Power Down Mode. This bit is cleared to 0 after a
power-on reset and unchanged by other forms of reset.
Mnemonic: P1
Mnemonic: EXIF
Bit:
Bit:
External I/O for Timer/Counter 2
Timer/Counter 2 Capture/Reload Trigger
Serial Port 1 Receive
Serial Port 1 Transmit
External Interrupt 2
External Interrupt 3
External Interrupt 4
External Interrupt 5
P1.7
IE5
7
7
P1.6
IE4
6
6
P1.5
IE3
- 17 -
5
5
P1.4
IE2
4
4
Publication Release Date: April 17, 2007
XT/ RG
P1.3
3
3
Address: 90h
Address: 91h
RGMD
P1.2
2
2
W77E058A
RGSL
P1.1
1
1
Revision A10
P1.0
0
0
-