VME VMIVME-2131, Инструкция по эксплуатации

Страница: 21 / 37

4 SECTION
PROGRAMMING
4.1 REGISTER MAP
The VMIVME-2131 contains eight 8-bit Output Data Registers and an 8-bit
Control and Status Register (CSR). These Output Data Registers allow access to
64 current source/sink output channels and are addressable as two 32-bit
longwords, four 16-bit words, or as eight 8-bit bytes. The Output Data Registers also
support bi-directional transfers, which is used for data validation or diagnostic
testing. The CSR is addressable as a 16-bit word or as two 8-bit bytes. It is a write-
only register.
4.2 DATA REGISTERS
RELATIVE ADDRESS MNEMONIC NAME/FUNCTION
$XXX0 DR0 DATA REGISTER 0
$XXX1 DR1 DATA REGISTER 1
$XXX2 DR2 DATA REGISTER 2
$XXX3 DR3 DATA REGISTER 3
$XXX4 DR4 DATA REGISTER 4
$XXX5 DR5 DATA REGISTER 5
$XXX6 DR6 DATA REGISTER 6
$XXX7 DR7 DATA REGISTER 7
XXX of the address is determined by data register address select jumpers
as shown in Section 5.
DR0 to DR7 are read/write registers.
CSRs
RELATIVE ADDRESS MNEMONIC NAME/FUNCTION
$YYY0 CSRU CSR UPPER BYTE
$YYY1 CSRL CSR LOWER BYTE
YYY of the address is determined by CSR address select jumpers as
shown in Section 5.
20
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com