86©2018 Integrated Device Technology, Inc September 12, 2018
8A3xxxx Family Programming Guide
STATUS.OUTPUT_TDC1_STATUS
Indicates the hardware output TDC instance assigned and the status code.
RESERVED N/A - This field must not be modified from the read value
STATUS[3:0] R/O 0 Status code.
When output TDC is not enabled, this shows 'Disabled'.
When OUTPUT_TDC_CTRL_4.GO is set and the configuration is valid, this
transitions to 'In progress'. When the operation completes successfully, status
transitions back to 'Idle' and OUTPUT_TDC_CTRL_4.GO will be cleared.
When OUTPUT_TDC_CTRL_4.GO is set and there is an invalid configuration,
then OUTPUT_TDC_CTRL_4.GO will be cleared and this will indicate the error
condition encountered.
0 = disabled
1 = idle
2 = in progress
3 = error - invalid source/target
4 = error - non-uniform master divider freq
5 = error - start failed
6 = error - measurement timeout
Table 96: STATUS.OUTPUT_TDC1_STATUS Bit Field Locations and Descriptions
Offset
Address
(Hex)
STATUS.OUTPUT_TDC1_STATUS Bit Field Locations
D7 D6 D5 D4 D3 D2 D1 D0
0AEh VALID[7] RESERVED[6:4] STATUS[3:0]
STATUS.OUTPUT_TDC1_STATUS Bit Field Descriptions
Bit Field Name Field Type Default Value Description
VALID[7] R/O 0 Indicates a valid measurement or alignment has met target phase offset.
When go bit is set, valid is cleared.
Measurement mode: Indicates when OUTPUT_TDCn_MEASUREMENT is
valid.
Alignment mode: Indicates when all the alignment targets are within the
OUTPUT_TDC_CTRL_1.TARGET_PHASE_OFFSET.
0 = invalid
1 = valid
STATUS.OUTPUT_TDC0_STATUS Bit Field Descriptions
Bit Field Name Field Type Default Value Description
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