IDT CPS-1848, User Manual

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10. Registers > Error Management Extensions Block Registers
CPS-1848 User Manual 249 June 2, 2014
Formal Status This document is confidential and is subject to an NDA.
Integrated Device Technology
10.7.5 Logical/Transport Layer Control Capture CSR
The contents of this register are locked simultaneously with the values in the Logical/Transport Layer Error Detect CSR , and
can be unlocked using same method.
Multiple errors in the same packet may cause multiple bits to be set in this register. For example, a Maintenance
Read Size Invalid error and a Maintenance Received with Data error are both detected when a Maintenance Read
Request has the dual defects of requesting more than 64 bytes and includes data.
Register Name: LT_CTL_CAPT_CSR
Reset Value: 0x0000_00000 Register Offset: 0x00101C
Bits 0 1 2 3 4 5 6 7
00:07 FTYPE TTYPE
08:15 Reserved
16:23 Reserved
24:31 IMP_SPEC
Bits Name Description Type
Reset
Value
0:3 FTYPE Format type associated with the error RW 0
4:7 TTYPE Transaction type associated with the error RW 0
8:23 Reserved Reserved RO 0
24:31 IMP_SPEC Implementation-specific information associated with the error RW 0
Logical/Transport
Layer Error Detect CSR
[31]
Logical/Transport Layer
Control Capture CSR
[24:31] Error Description
a
0b1 0b0000_0000 No Error
0b1 0b0000_0001 Maintenance Read Size Invalid (MTC_BAD_READ_SIZE)
Triggered when a read request maintenance packet has an
invalid size (that is, not 8, 16, 32, or 64 bytes). A response packet
with an error status is generated.
0b1 0b0000_0010 Maintenance Write Size Invalid (MTC_BAD_WR_SIZE)
Triggered when:
• A write request maintenance packet has an invalid size (that is,
not 8, 16, 32, or 64 bytes). A response packet with an error
status is generated.
• A maintenance payload size does not match the configured
size (for example, a payload size of 64 bytes requires 64 bytes
of payload).