z8f1601 ZiLOG Semiconductor, z8f1601 Datasheet - Page 69
z8f1601
Manufacturer Part Number
z8f1601
Description
Z8 Encore!? Microcontroller With Flash Memory And 10-bit A/d Converter
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z8F1601.pdf
(246 pages)
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Table 27. IRQ0 Enable High Bit Register (IRQ0ENH)
PS017609-0803
RESET
FIELD
ADDR
BITS
R/W
IRQ0 Enable High and Low Bit Registers
T2ENH
R/W
7
0
The IRQ0 Enable High and Low Bit registers (Tables 27 and 28) form a priority encoded
enabling for interrupts in the Interrupt Request 0 register. Priority is generated by setting
bits in each register. Table 26 describes the priority control for IRQ0.
Table 26. IRQ0 Enable and Priority Encoding
T2ENH—Timer 2 Interrupt Request Enable High Bit
T1ENH—Timer 1 Interrupt Request Enable High Bit
T0ENH—Timer 0 Interrupt Request Enable High Bit
U0RENH—UART 0 Receive Interrupt Request Enable High Bit
U0TENH—UART 0 Transmit Interrupt Request Enable High Bit
I2CENH—I
SPIENH—SPI Interrupt Request Enable High Bit
ADCENH—ADC Interrupt Request Enable High Bit
where x indicates the register bits from 0 through 7.
IRQ0ENH[x] IRQ0ENL[x] Priority
0
0
1
1
T1ENH
R/W
6
0
2
C Interrupt Request Enable High Bit
T0ENH
0
1
0
1
R/W
5
0
Disabled
Level 1
Level 2
Level 3
U0RENH
R/W
4
0
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
FC1H
U0TENH
R/W
Description
Disabled
Low
Nominal
High
3
0
I2CENH
R/W
2
0
SPIENH
R/W
Interrupt Controller
1
0
Z8 Encore!
ADCENH
R/W
0
0
®
51
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