pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 184

• Manufacturer Part Number: pc87591l
• Description: Lpc Mobile Embedded Controllers
• Manufacturer: National Semiconductor Corporation

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Embedded Controller Modules
Voltage Channel 1 Data Buffer (VCHN1DAT)
This register (buffer) holds the data measured by Voltage Channel 1.
Location: 00 FF36
Type: RO
Voltage Channel 2 Control Register (VCHN2CTL)
This register controls the operation and indicates the status of Voltage Channel 2. VCHN2CTL is set to 1F
Location: 00 FF38
Type: Varies per bit
Voltage Channel 2 Data Buffer (VCHN2DAT)
This register (buffer) holds the data measured by the Voltage Channel 2.
Location: 00 FF3A
Type: RO
Bit
Name
Bit
Name
Reset
Bit
Name
15-10 Reserved.
15-10 Reserved.
9-0
9-0
Bit
Bit
4-0
Bit
5
6
7
VCHDAT (Voltage Channel 2 Data). Same as Voltage Channel 1.
VCHDAT (Voltage Channel 1 Data). Selected input voltage data, measured by Voltage Channel 1. To calculate
the voltage, see Section 4.11.3 on page 173. VCHN1DAT holds valid result when DATVAL bit in VCHN1CTL
register is set. To prepare for consecutive result, clear DAVAL after reading the data from VCHDAT.
Range: 0 to 1023 (0 to V
R/W1C DATVAL (Data Valid). Same as Voltage Channel 1.
Type
R/W
R/W
R/W
15
15
DATVAL
SELIN (Selected Input). Same as Voltage Channel 1.
INTDVEN (Interrupt from Data Valid Enable). Same as Voltage Channel 1.
CSCALE (Channel Scale). Same as Voltage Channel 1.
16
16
16
7
0
14
14
Reserved
Reserved
13
CSCALE
13
6
0
FS
); 10-bit, unsigned value with 1 LSB = V
12
12
INTDVEN
11
11
(Continued)
5
0
10
10
9
9
Description
Description
184
4
1
Description
8
8
7
7
3
1
FS
6
6
/1024 (the value at reset is undefined).
VCHDAT
VCHDAT
5
5
SELIN
2
1
4
4
3
3
1
1
2
2
16
on reset.
1
1
Revision 1.07
0
1
0
0