ICS memory map
Absolute
address
(hex)
Register name
Width
(in bits)
Access Reset value
Section/
page
3038
ICS Control Register 1 (ICS_C1)
8
R/W
04h
3039
ICS Control Register 2 (ICS_C2)
8
R/W
20h
303A
ICS Control Register 3 (ICS_C3)
8
R/W
Undefined
303B
ICS Control Register 4 (ICS_C4)
8
R/W
00h
303C
ICS Status Register (ICS_S)
8
R
10h
303E
OSC Status and Control Register (ICS_OSCSC)
8
R/W
00h
8.6.1 ICS Control Register 1 (ICS_C1)
Address: 3038h base + 0h offset = 3038h
Bit
7
6
5
4
3
2
1
0
Read
Write
Reset
0
0
0
0
0
1
0
0
ICS_C1 field descriptions
Field
Description
7–6
CLKS
Clock Source Select
Selects the clock source that controls the bus frequency. The actual bus frequency depends on the value
of the BDIV bits.
00
Output of FLL is selected.
01
Internal reference clock is selected.
10
External reference clock is selected.
11
Reserved.
5–3
RDIV
Reference Divider
Selects the amount to divide down the FLL reference clock selected by the IREFS bits. Resulting
frequency must be in the range 31.25 kHz to 39.0625 kHz.
RDIV
ICS_OSCSC[RANGE]= 0
ICS_OSCSC[RANGE]= 1
000
1
32
001
2
64
010
4
128
011
8
256
100
16
512
101
32
1024
110
64
Reserved
111
128
Reserved
Table continues on the next page...
Chapter 8 Clock management
MC9S08PT60 Reference Manual, Rev. 4, 08/2014
Freescale Semiconductor, Inc.
217
Содержание MC9S08PT60
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Страница 40: ...System clock distribution MC9S08PT60 Reference Manual Rev 4 08 2014 40 Freescale Semiconductor Inc...
Страница 120: ...Flash and EEPROM registers descriptions MC9S08PT60 Reference Manual Rev 4 08 2014 120 Freescale Semiconductor Inc...
Страница 200: ...Port data registers MC9S08PT60 Reference Manual Rev 4 08 2014 200 Freescale Semiconductor Inc...
Страница 228: ...System clock gating control registers MC9S08PT60 Reference Manual Rev 4 08 2014 228 Freescale Semiconductor Inc...
Страница 262: ...Human machine interfaces HMI MC9S08PT60 Reference Manual Rev 4 08 2014 262 Freescale Semiconductor Inc...
Страница 298: ...Functional Description MC9S08PT60 Reference Manual Rev 4 08 2014 298 Freescale Semiconductor Inc...
Страница 396: ...FTM Interrupts MC9S08PT60 Reference Manual Rev 4 08 2014 396 Freescale Semiconductor Inc...
Страница 440: ...Functional description MC9S08PT60 Reference Manual Rev 4 08 2014 440 Freescale Semiconductor Inc...
Страница 468: ...Initialization Application Information MC9S08PT60 Reference Manual Rev 4 08 2014 468 Freescale Semiconductor Inc...
Страница 570: ...Application information MC9S08PT60 Reference Manual Rev 4 08 2014 570 Freescale Semiconductor Inc...
Страница 648: ...Memory map and register description MC9S08PT60 Reference Manual Rev 4 08 2014 648 Freescale Semiconductor Inc...
Страница 676: ...Resets MC9S08PT60 Reference Manual Rev 4 08 2014 676 Freescale Semiconductor Inc...