MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 346

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

S12 Clock, Reset and Power Management Unit (S12CPMU)
346
RTR[6:4]
RTR[3:0]
RTDEC
Field
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
6–4
3–0
1001 (÷10)
1010 (÷11)
1011 (÷12)
1100 (÷13)
1101 (÷14)
0000 (÷1)
0001 (÷2)
0010 (÷3)
0011 (÷4)
0100 (÷5)
0101 (÷6)
0110 (÷7)
0111 (÷8)
1000 (÷9)
RTR[3:0]
7
Decimal or Binary Divider Select Bit — RTDEC selects decimal or binary based prescaler values.
0 Binary based divider value. See
1 Decimal based divider value. See
Real Time Interrupt Prescale Rate Select Bits — These bits select the prescale rate for the RTI. See
Table 10-10
Real Time Interrupt Modulus Counter Select Bits — These bits select the modulus counter target value to
provide additional
CPMURTI register.
A write to this register starts the RTI time-out period. A change of the
RTIOSCSEL bit (writing a different value or loosing UPOSC status)
re-starts the RTI time-out period.
(OFF)
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
000
and
Table 10-10. RTI Frequency Divide Rates for RTDEC = 0
1
Table
granularity.Table 10-10
10-11.
10x2
11x2
12x2
13x2
14x2
2x2
3x2
4x2
5x2
6x2
7x2
8x2
9x2
Table 10-9. CPMURTI Field Descriptions
(2
MC9S12G Family Reference Manual,
001
2
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
)
Table 10-10
10x2
11x2
12x2
13x2
14x2
Table 10-11
2x2
3x2
4x2
5x2
6x2
7x2
8x2
9x2
(2
010
2
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
)
and
NOTE
Table 10-11
Description
10x2
11x2
12x2
13x2
14x2
2x2
3x2
4x2
5x2
6x2
7x2
8x2
9x2
(2
011
2
12
12
RTR[6:4] =
12
12
12
12
12
12
12
12
12
12
12
12
12
)
show all possible divide values selectable by the
10x2
11x2
12x2
13x2
14x2
2x2
3x2
4x2
5x2
6x2
7x2
8x2
9x2
(2
Rev.1.01
100
2
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
)
10x2
11x2
12x2
13x2
14x2
2x2
3x2
4x2
5x2
6x2
7x2
8x2
9x2
(2
101
2
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
)
Freescale Semiconductor
10x2
11x2
12x2
13x2
14x2
2x2
3x2
4x2
5x2
6x2
7x2
8x2
9x2
(2
110
2
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
)
10x2
11x2
12x2
13x2
14x2
2x2
3x2
4x2
5x2
6x2
7x2
8x2
9x2
(2
111
2
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
)