SYS68K/CPU-30 R4 Technical Reference Manual
Hardware Description
Page 67
When the serial ports #1, #2 and #3 are configured for RS-422 operation,
its I/O signals will be connected to the optional 5-row VME P2 connector
as follows:
3.9.8
Termination
Resistors for
RS-422/RS-485
Configuration
If termination resistors are necessary to compensate for various cable
lengths and to reduce signal reflections, it must be done externally from
the CPU-30 R4 (e.g. via a cable connector).
The resistor value is user application dependent, but a recommended
value is 1000 Ohms.
3.9.9
Summary of
DUSCC #1
Device
68562 DUSCC
Access Address
FF80.2000
16
Port Width
Byte
Interrupt Request Level
Software programmable
FGA-002 Interrupt Level
Local IRQ #4
Port
Signal
Input
Output
VME
Connector P2
Description
1
TXD-
RTS-
CTS+
RXD+
RXD-
TXD+
RTS+
CTS-
x
x
x
x
x
x
x
x
D8
D4
D3
D7
D9
D24
D5
D6
Transmit Data
Request to Send
Clear to Send
Receive Data
Receive Data
Transmit Data
Request to Send
Clear to Send
2
TXD-
RTS-
CTS+
RXD+
RXD-
TXD+
RTS+
CTS-
x
x
x
x
x
x
x
x
D15
D11
D10
D14
D16
D25
D12
D13
Transmit Data
Request to Send
Clear to Send
Receive Data
Receive Data
Transmit Data
Request to Send
Clear to Send
3
TXD-
RTS-
CTS+
RXD+
RXD-
TXD+
RTS+
CTS-
x
x
x
x
x
x
x
x
D22
D18
D17
D21
D23
D26
D19
D20
Transmit Data
Request to Send
Clear to Send
Receive Data
Receive Data
Transmit Data
Request to Send
Clear to Send
Содержание SYS68K/CPU-30 R4
Страница 41: ...Installation SYS68K CPU 30 R4 Technical Reference Manual Page 28...
Страница 127: ...Hardware Description SYS68K CPU 30 R4 Technical Reference Manual Page 114...
Страница 130: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 117 4 2 1 RTC 72421...
Страница 131: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 118 4 2 2 DUSCC 68562...
Страница 132: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 119 4 2 3 PI T TS68230...
Страница 133: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 120 4 2 4 SCSI 87033 34...
Страница 134: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 121 4 2 5 FDC37C65C...
Страница 135: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 122 4 2 6 LANCE Am79C90...
Страница 136: ...SYS68K CPU 30 R4 Technical Reference Manual Set of Data Sheets Page 123 4 2 7 SIA Am7992B...
Страница 137: ...Set of Data Sheets SYS68K CPU 30 R4 Technical Reference Manual Page 124 4 2 8 Motorola MC68030 and MC68882...
Страница 145: ...VMEPROM SYS68K CPU 30 R4 Technical Reference Manual Page 132...
Страница 189: ...Appendix to VMEPROM SYS68K CPU 30 R4 Technical Reference Manual Page 176...