Control Register 2 - Offset 0X0000000E; Test Registers; Scratchpad Registers; Table 3-17 Control Register 2 - GE IMP2B Hardware Reference Manual

3.15.9 Control Register 2 – Offset 0x0000000E

Table 3-17 Control Register 2

Bits Mode Description
0 Read/Write COM1/COM2 Transceiver Enable
1 Read/Write COM1 Mode
5 to 2
6 Read/Write COM2 Mode
10 to 7
11 Read/Write COM1/COM2 transceiver loopback mode
12 Read/Write BIT Fail LED (Red)
13 Read/Write BIT LED 1 (Yellow)
14 Read/Write BIT LED 2 (Yellow)
15 Read/Write BIT Passed LED (Green)

3.15.10 Test Registers

Table 3-18 Test Registers

Register Offset Bits
Test 1a 0x00000010 15 to 0
Test 1b 0x00000012 15 to 0
Test 2a 0x00000014 15 to 0
Test 2b 0x00000016 15 to 0
Test 3a 0x00000018 15 to 0
Test 3b 0x0000001A 15 to 0

3.15.11 Scratchpad Registers

Table 3-19 Scratchpad Registers

Register
Scratchpad 1
Scratchpad 2
32 IMP2B 3U cPCI Single Board Computer
Reserved
Reserved
Mode Description
Read only Test pattern 0xAAAA
Read only Test pattern 0xAAAA
Read only Test pattern 0x5555
Read only Test pattern 0x5555
Read only Test pattern 0x4950
Read only Test pattern 0x3242
Offset Bits
0x0000001C 15 to 0
0x0000001E 15 to 0
Notes
0 = Disabled (default)
1 = Enabled
0 = RS232
1 = RS422
Defaults to RS232 unless COM1 RS422 termination is fitted,
then this bit defaults, and locks, to '1'
0 = RS232
1 = RS422
Defaults to RS232 unless COM2 RS422 termination is fitted,
then this bit defaults, and locks, to '1'
0 = Enabled
1 = Disabled (default)
0 = LED off
1 = LED lit (default)
0 = LED off (default)
1 = LED lit
Notes
Displays the second 16 bits of the Flash Protection Password if the
Flash Protection Password Unlock Link (P3 1-2)
Displays the first 16 bits of the Flash Protection Password if the
Flash Protection Password Unlock Link (P3 1-2)
Displays the third 16 bits of the Flash Protection Password if the
Flash Protection Password Unlock Link (P3 1-2)
Displays the fourth 16 bits of the Flash Protection Password if the
Flash Protection Password Unlock Link (P3 1-2)
"IP" in ASCII
"2B" in ASCII
Mode Description
Read/Write Upper 16 bits
Read/Write Lower 16 bits
is fitted
is fitted
is fitted
is fitted
Notes
Reset Value = 0x0000
Reset Value = 0x0000
Publication No. IMP2B-0HH/5