Datasheet

ACMP_CS field descriptions (continued)
Field Description
10 ACMP interrupt on output falling edge.
11 ACMP interrupt on output falling or rising edge.
20.3.2 ACMP Control Register 0 (ACMP_C0)
Address: 2Ch base + 1h offset = 2Dh
Bit 7 6 5 4 3 2 1 0
Read 0
ACPSEL
0
ACNSEL
Write
Reset
0 0 0 0 0 0 0 0
ACMP_C0 field descriptions
Field Description
7–6
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
5–4
ACPSEL
ACMP Positive Input Select
00 External reference 0
01 External reference 1
10 Reserved
11 DAC output
3–2
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
1–0
ACNSEL
ACMP Negative Input Select
00 External reference 0
01 External reference 1
10 Reserved
11 DAC output
20.3.3 ACMP Control Register 1 (ACMP_C1)
Address: 2Ch base + 2h offset = 2Eh
Bit 7 6 5 4 3 2 1 0
Read
DACEN DACREF DACVAL
Write
Reset
0 0 0 0 0 0 0 0
Chapter 20 Analog comparator (ACMP)
MC9S08PA60 Reference Manual, Rev. 1, 9/2012
Freescale Semiconductor, Inc. 561