Instruction manual
Table Of Contents
- INTRODUCTION
- GETTING STARTED
- MAKING THE CONNECTIONS
- USING THE PC215E
- STRUCTURE AND ASSIGNMENTS OF THE REGISTERS
- Register Assignments
- Register Groups
- The Register Details
- Programmable Peripheral Interface PPI-X Data Register Port A
- Programmable Peripheral Interface PPI-X Data Register Port B
- Programmable Peripheral Interface PPI-X Data Register Port C
- Programmable Peripheral Interface PPI-X Command Register
- Programmable Peripheral Interface PPI-Y Data Register Port A
- Programmable Peripheral Interface PPI-Y Data Register Port B
- Programmable Peripheral Interface PPI-Y Data Register Port C
- Programmable Peripheral Interface PPI-Y Command Register
- Z1 Counter 0 Data Register
- Z1 Counter 1 Data Register
- Z1 Counter 2 Data Register
- Counter/Timer Z1 Control Register
- Z1 Counter/Timer Status Register
- Z2 Counter 0 Data Register
- Z2 Counter 1 Data Register
- Z2 Counter 2 Data Register
- Counter/Timer Z2 Control Register
- Z2 Counter/Timer Status Register
- Group Z Clock Connection Register
- Group Z Gate Connection Register
- Interrupt Source Selection Register
- Interrupt Status Register
- PROGRAMMING THE PC215E
- Copyright
- Files installed from the Distribution Diskette
- Windows DLL and Examples
- DOS 'C' Library and Examples
- Using the Dynamic Link Library
- Windows and DOS Library Functions
- Initialisation Functions
- Interrupt Control Functions
- Data Buffer Functions
- Timer/Counter Functions
- Differential Counter Functions
- Frequency Generation Functions
- Millisecond Stopwatch Functions
- Frequency Input and Output Functions
- Digitally- and Voltage-Controlled Oscillator Functions
- Digital Input/Output Functions
- Switch Scanner Matrix Functions
- Bi-Directional Data Bus Functions
- PC215E Library Error Codes
- PC215E Interface Guide For LABTECH NOTEBOOK
- Guide to User Programming
- Signal Centre
- CONTENTS
- DECLARATION OF CONFORMITY
PC215E Page 50
5.3.20 Group Z Gate Connection Register
This is the register that can be used to select the counter/timer gate input sources for the six
counter/timers on the PC215E board.
Register
Offset
Write and/or
Read
Register
Width
Register
Title
Mnemonic
1D
16
Write 8 bits
Group Z Counter/timer Gate
Selection Register
ZGAT_SCE
FUNCTION
Individually selects one of the four possible Counter/Timer gate input signal sources for each of
the six counter/timers on the PC215E board. The selected source will then appear on the gate
input of the specified counter/timer.
The Four Gate Sources
The four possible gate sources are as follows:
1. VCC (internal +5V d.c.) i.e. gate permanently enabled
2. GND (internal 0V d.c.) i.e. gate permanently disabled
3. The counter/timer's GAT input from the SK1 connector
4. OUT n-2 the inverted output of counter/timer n-2
BIT ASSIGNMENTS
01234567
Gate Selection
VCC
GND
GAT n
/OUT n-2
Reserved
Reserved
Reserved
Reserved
bit 0
0
1
0
1
0
1
0
1
bit 1
0
0
1
1
0
0
1
1
bit 2
0
0
0
0
1
1
1
1
Counter/Timer
Counter 0
Counter 1
Counter 2
Reserved
bit 3
0
1
0
1
bit 4
0
0
1
1
Reserved
bit 6
X
bit 7
X
bit 5
0
1
Counter/Timer Device
Z1
Z2