Table 2-25. Ilwctrl Register; Table 2-26. Ilwctrl Fields; Idle Low Word Register (Ilwctrl) - Sharp LH79524 User Manual

Analog-to-Digital Converter/Brownout Detector

2.2.2.12 Idle Low Word Register (ILWCTRL)

ILWCTRL is the low word of the Idle Register. The active bits used in this register are
Read/Write.
This register specifies the inputs connected to the ADC during the Idle state. This register
is used with the IHWCTRL Register (see Section 2.2.2.11).
BIT
FIELD
RESET
RW
BIT
FIELD
RESET
RW
ADDR
BIT
31:14
13:2
1:0
IMPORTANT: Bits 9-11 must always be written as 0b000. Writing a 1 to any of these three bits can cause
2-24

Table 2-25. ILWCTRL Register

31 30 29 28 27
0 0 0 0 0
RO RO RO RO RO
15 14 13 12 11
///
0 0 0 0 0
RO RO RW RW RW

Table 2-26. ILWCTRL Fields

NAME
/// Reserved Reading returns 0. Write the reset value.
Idle Bias Control These bits turn the FETs on and off, as shown in
Figure 2-2. The bit number corresponds to the FET number in the figure.
BIASCON_ID
1 = FET on
0 = FET off
Idle Ref- Mux Specifies the connection to the negative reference of
the ADC during Idle Mode.
00 = VREF-
REFM_ID
01 = AN1 (UR/X-)
10 = AN3 (LR/Y-)
11 = AN9
unpredictable results.
26 25 24 23
///
0 0 0 0
RO RO RO RO
10 9 8 7
BIASCON_ID
0 0 0 0
RW RW RW RW
0xFFFC3000 + 0xA8
DESCRIPTION
Version 1.0
LH79524/LH79525 User's Guide
22 21 20 19 18
0 0 0 0 0
RO RO RO RO RO
6 5 4 3 2
0 0 0 0 0
RW RW RW RW RW
17 16
0 0
RO RO
1 0
REFM_ID
0 0
RW RW