Programmer’s Model for Test
ARM DDI 0306B
Copyright © 2003, 2004. ARM Limited. All rights reserved.
4-3
4.2
Test registers
The input configuration pin
INTNUM
defines the bit width of the IPCMTOR register.
For example, when
INTNUM
is set to 1, IPCMTOR is only a single bit wide (bit 0).
Setting
INTNUM
to 32 sets IPCMTOR to 32 bits wide.
The IPCM test registers are memory-mapped as shown in
IPCM register map
on
page 3-4 and Table 3-1 on page 3-6. The address offset is from the base address.
4.2.1
Integration Test Control Register
The read/write IPCMTCR Register controls the IPCM integration test mode. When
ITEN=1, the IPCM is placed in integration test mode. Figure 4-1 shows and Table 4-1
lists the register bit assignments.
Figure 4-1 IPCMTCR Register bit assignments
4.2.2
Integration Test Output Register
The read/write IPCMTOR Register enables the output port signals of the IPCM to be
driven directly rather than from their normal internal logic source when in integration
test mode, that is, when ITEN=1 in the IPCMTCR Register. Table 4-2 lists the register
bit assignments.
Table 4-1 IPCMTCR Register bit assignments
Bit
Name
Function
[31:1]
-
Read undefined. Write as zero.
[0]
ITEN
Integration test enable: 0 =
integration test mode disabled 1 =
integration test mode enabled.
Undefined
31
1 0
ITEN
Table 4-2 IPCMTOR Register bit assignments
Bit
Name
Function
[31:0]
IntTest
IPCMINT[31:0]
output
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