ZiLOG Z8 User Manual

Z8 Microcontrollers
List of Figures ZiLOG
Figure Title Page
x UM001601-0803
RC Clock .....................................................................................................................................3-6
Chapter 4. Reset—Watch-Dog Timer
Reset Timing ...............................................................................................................................4-2
Example of External Power-On Reset Circuit ..............................................................................4-3
Example of Z8 Reset with /RESET Pin, WDT, SMR, and POR ..................................................4-5
Example of Z8 Reset with WDT, SMR, and POR ........................................................................4-6
Example of Z8 Watch-Dog Timer Mode Register (Write-Only) ...................................................4-7
Example of Z8 with Simple SMR and POR .................................................................................4-8
Chapter 5. I/O Ports
I/O Ports and Mode Registers .....................................................................................................5-1
Ports 0, 1, 2 Generic Block Diagram ..........................................................................................5-2
Port 0 Configuration with Open-Drain Capability, Auto Latch,
and Schmitt-Trigger ..........................................................................................................5-3
Port 0 Configuration with TTL Level Shifter ................................................................. 5-4
Port 0 I/O Operation ....................................................................................................................5-5
Port 0 Handshake Operation .......................................................................................................5-5
Port 1 Configuration with Open-Drain Capability, Auto Latch,
and Schmitt-Trigger ..........................................................................................................5-6
Port 1 Configuration with TTL Level Shifter .................................................................................5-7
Port 1 I/O Operation ....................................................................................................................5-8
Handshake Operation ..................................................................................................................5-8
Port 2 I/O Mode Configuration .....................................................................................................5-9
Port 2 Configuration with Open-Drain Capability, Auto Latch,
and Schmitt-Trigger ..........................................................................................................5-9
Port 2 Configuration with TTL Level Shifter ...............................................................................5-10
Port 2 Configuration with Open-Drain Capability, Auto Latch,
Schmitt-Trigger and SPI ..................................................................................................5-11
Port 2 Handshake Configuration 5 ..............................................................................................-12
Port 2 Handshaking ...................................................................................................................5-12
Port 3 Block Diagram .................................................................................................................5-13
Port 3 Configuration with Comparator, Auto Latch, and Schmitt-Trigger ..................................5-14
Port 3 Configuration with Comparator .......................................................................................5-15
Chapter 5. I/O Ports (Continued)
Port 3 Configuration with SPI and Comparator Outputs
Using P34 and P35 .........................................................................................................5-16
Port 3 Configuration with TTL Level Shifter and Auto Latch ......................................................5-17
Port 3 Mode Register Configuration ..........................................................................................5-18
Z8 Input Handshake ..................................................................................................................5-20

ZiLOG Z8 Specifications

General

Brand	ZiLOG
Model	Z8
Category	Desktop
Language	English