z8f0822 ZiLOG Semiconductor, z8f0822 Datasheet - Page 5
z8f0822
Manufacturer Part Number
z8f0822
Description
High Performance 8-bit Microcontrollers
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z8F0822.pdf
(264 pages)
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Part Number:
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Manufacturer:
Zilog
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Part Number:
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Manufacturer:
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PS022517-0508
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
General-Purpose Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Interrupt Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Reset Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Stop Mode Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
STOP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
HALT Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
GPIO Port Availability by Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
GPIO Alternate Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
GPIO Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
GPIO Control Register Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Interrupt Vector Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Interrupt Control Register Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Voltage Brownout Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Watchdog Timer Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
External Pin Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
On-Chip Debugger Initiated Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Stop Mode Recovery Using WDT Time-Out . . . . . . . . . . . . . . . . . . . . . . . . 44
Stop Mode Recovery Using a GPIO Port Pin Transition . . . . . . . . . . . . . . . 44
Port A–C Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Port A–C Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Port A–C Input Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Port A–C Output Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Master Interrupt Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Interrupt Vectors and Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Interrupt Assertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Software Interrupt Assertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Interrupt Request 0 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Interrupt Request 1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Interrupt Request 2 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
IRQ0 Enable High and Low Bit Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 63
IRQ1 Enable High and Low Bit Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 64
IRQ2 Enable High and Low Bit Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Interrupt Edge Select Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Interrupt Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Z8 Encore! XP
Product Specification
®
Table of Contents
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