Z8F6401VN020SC00TR Zilog, Z8F6401VN020SC00TR Datasheet - Page 70

• Manufacturer Part Number: Z8F6401VN020SC00TR
• Description: IC ENCORE MCU FLASH 64K 44PLCC
• Manufacturer: Zilog
• Series: Encore!®r

Specifications of Z8F6401VN020SC00TR

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 31
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: Z8F6401VN020SC00T

Table 28. IRQ0 Enable Low Bit Register (IRQ0ENL)
PS017610-0404
RESET
FIELD
ADDR
BITS
R/W
IRQ1 Enable High and Low Bit Registers
T2ENL
R/W
7
0
T2ENL—Timer 2 Interrupt Request Enable Low Bit
T1ENL—Timer 1 Interrupt Request Enable Low Bit
T0ENL—Timer 0 Interrupt Request Enable Low Bit
U0RENL—UART 0 Receive Interrupt Request Enable Low Bit
U0TENL—UART 0 Transmit Interrupt Request Enable Low Bit
I2CENL—I
SPIENL—SPI Interrupt Request Enable Low Bit
ADCENL—ADC Interrupt Request Enable Low Bit
The IRQ1 Enable High and Low Bit registers (Tables 30 and 31) form a priority encoded
enabling for interrupts in the Interrupt Request 1 register. Priority is generated by setting
bits in each register. Table 29 describes the priority control for IRQ1.
Table 29. IRQ1 Enable and Priority Encoding
where x indicates the register bits from 0 through 7.
IRQ1ENH[x] IRQ1ENL[x] Priority
0
0
1
1
T1ENL
R/W
6
0
2
C Interrupt Request Enable Low Bit
T0ENL
0
1
0
1
R/W
5
0
Disabled
Level 1
Level 2
Level 3
U0RENL
R/W
4
0
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
FC2H
U0TENL
R/W
Description
Disabled
Low
Nominal
High
3
0
I2CENL
R/W
2
0
SPIENL
R/W
Interrupt Controller
1
0
Z8 Encore!
ADCENL
R/W
0
0
®
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