RTD Embedded Technologies, Inc.
| www.rtd.com
47
DM35418HR/DM35218HR
User’s Manual
BDM-610010041 Rev F
6.5.8
POST_STOP_CONVERSIONS
(R
EAD
/W
RITE
)
Number of conversions to send after the Stop Trigger.
6.5.9
CONVERSION_CNT
(R
EAD
O
NLY
)
Total number of conversions. It also continues counting after a Re-Arm.
6.5.10
INT_ENA
(M
ASKABLE
R
EAD
/W
RITE
)
Each bit corresponds to an interrupt source. A value of ‘1’ enables the source, and a value of ‘0’ disables it. See below for a description of the
sources.
6.5.11
INT_STAT
(R
EAD
/C
LEAR
)
Each bit corresponds to an interrupt source. Reading a value of ‘1’ indicates that an event has occurred. Reading a value of ‘0’ indicates that the
event has not occurred. Writing a ‘1’ will clear that bit.
B[0]: Conversion – A value has been sent.
B[1]: Channel Marker – One of the channels has an enabled marker.
B[2]: Reserved
B[3]: Start Trigger
B[4]: Stop Trigger
B[5]: Post-Stop Conversions Completed
6.5.12
CLK_SRC_GBL
N
NOTE: If a CLK_SRC_GBL is unassigned in all function blocks, it defaults to
System Clock/Immediate.
Selects the source to drive onto Clock Bus signal N.
B[7:0]:
o
0x00: Disable Clock Source
o
0x80: Conversion – A value has been sent.
o
0x81: Channel Marker – One of the channels has an enabled marker.
o
0x82: Reserved
o
0x83: Start Trigger
o
0x84: Stop Trigger
o
0x85: Post-Stop Conversions Completed
6.5.13
DA_CONFIG
(M
ASKABLE
R
EAD
/W
RITE
)
Not used.
6.5.14
CH_FRONT_END_CONFIG
(M
ASKABLE
R
EAD
/W
RITE
)
This register provides configuration to the Front End for this DAC Channel.
B[1:0]: PGA_A[1:0]
o
PGA_A[1:0]: 00: Gain of 1
o
PGA_A[1:0]: 01: Gain of 2
o
PGA_A[1:0]: 10: Gain of 4
Table 24: DAC Full-Scale Settings
PGA_A[1
:0]
Gain
Range
00
1
±2.5V
01
2
±5V
10
4
±10V