mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 159

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

6.2
The reset control module (RCM) registers provide reset status information and reset filter
control.
6.2.1 System Reset Status Register 0 (RCM_SRS0)
This register includes read-only status flags to indicate the source of the most recent
reset. The reset state of these bits depends on what caused the MCU to reset.
Address: RCM_SRS0 is FFFF_8110h base + 0h offset = FFFF_8110h
Freescale Semiconductor, Inc.
FFFF_8110
FFFF_8111
FFFF_8114
FFFF_8115
FFFF_8117
Absolute
address
(hex)
POR
Reset
Field
Read
Write
7
Reset memory map and register descriptions
Bit
System Reset Status Register 0 (RCM_SRS0)
System Reset Status Register 1 (RCM_SRS1)
Reset Pin Filter Control Register (RCM_RPFC)
Reset Pin Filter Width Register (RCM_RPFW)
Mode Register (RCM_MR)
The reset value of this register depends on the reset source:
POR
Power-on reset
7
1
• POR (including LVD) — 0x82
• LVD (without POR) — 0x02
• Low leakage wakeup due to RESET pin assertion — 0x41
• Low leakage wakeup due to other wakeup sources — 0x01
• Other reset — a bit is set if its corresponding reset source
caused the reset
PIN
0
6
MCF51JF128 Reference Manual, Rev. 2, 03/2011
Register name
RCM_SRS0 field descriptions
Table continues on the next page...
WDOG
0
5
RCM memory map
Preliminary
NOTE
ILOP
0
4
Description
ILAD
0
3
(in bits)
Width
8
8
8
8
8
Access
LOC
R/W
R/W
0
2
R
R
R
Reset value
Chapter 6 Reset and Boot
82h
00h
00h
00h
00h
LVD
1
1
WAKEUP
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