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©2018 Integrated Device Technology, Inc
September 12, 2018
8A3xxxx Family Programming Guide
Module: TOD_READ_SECONDARY_0
Configure the TOD read secondary registers
TOD_READ_TRIGGER_M
ODE[4]
R/W
0
Select single shot TOD read or continuous TOD read.
This field will be cleared after the first TOD read finish.
0 = single shot
1 = continuous
TOD_READ_TRIGGER[3:
0]
R/W
0
Read TOD trigger.
For options 2, 3, 4 and 6, the trigger is always on the rising edge of the selected
signal. This field will be cleared after the first TOD read finish.
0 = disabled, no trigger
1 = immediate
2 = internal ToD PPS signal
3 = selected reference clock input
4 = selected PWM decoder's 1 PPS output
5 = reserved
6 = a write to DPLL_WR_FREQ
7 = selected GPIO
Table 367: TOD_READ_SECONDARY_0 Register Index
Offset
(Hex)
Register Module Base Address: CC90h
a
a. This register module is instantiated multiple times. This is the base address of the first instantiation of this module. For later instantiations,
use the appropriate module base address.
Individual Register Name
Register Description
000h
TOD_READ_SECONDARY_0.TOD_READ_SE
CONDARY
TOD read secondary registers.
00Bh
TOD_READ_SECONDARY_0.TOD_READ_SE
CONDARY_COUNTER
Indicates when TOD read is completed.
00Ch
TOD_READ_SECONDARY_0.TOD_READ_SE
CONDARY_SEL_CFG_0
TOD read trigger configuration.
00Dh
RESERVED
This register must not be modified from the read value
00Eh
TOD_READ_SECONDARY_0.TOD_READ_SE
CONDARY_CMD
TOD read trigger selection.
TOD_READ_PRIMARY_0.TOD_READ_PRIMARY_CMD Bit Field Descriptions
Bit Field Name
Field Type Default Value
Description