MSC8113 Reference Manual, Rev. 0
Freescale Semiconductor
5-1
Reset
5
All MSC8113 reset sources are fed into the reset controller, which takes different actions
depending on the source of the reset. The Reset Status Register indicates the most recent sources
to cause a reset. Table 5-1 describes the reset sources.
Table 5-1. Reset Sources
Name Direction
Description
Power-on reset
(PORESET)
Input
Initiates the power-on reset flow that resets the MSC8113 and configures various
attributes of the device. On PORESET, the entire MSC8113 device is reset. SPLL state
is reset, HRESET and SRESET are driven, the SC140 extended cores are reset, and
system configuration is sampled. The clock mode (MODCK bits), reset configuration
mode, boot mode, Chip ID, DSI sync or a-sync mode, Software Watch Dog Timer
Enable, and use of either a DSI 64-bit port or a 60x-compatible system bus 64-bit port
are configured only at the rising edge of PORESET.
External hard
reset
(HRESET)
I/O
Initiates the hard reset flow that configures various attributes of the MSC8113. During
HRESET, SRESET is asserted. HRESET is an open-drain output. Upon hard reset,
HRESET and SRESET are driven, the SC140 extended cores are reset, and system
configuration is sampled. The most configurable features are reconfigure. These
features are defined in the 32-bit HRCW described in Section 5.6.1, Hard Reset
Configuration Word, on page 5-13.
External soft
reset
(SRESET)
I/O
Initiates the soft reset flow. The MSC8113 device detects an external assertion of
SRESET only if it occurs while the MSC8113 is not asserting reset. SRESET is an
open-drain output. Upon soft reset, SRESET is driven, the SC140 extended cores are
reset, and system configuration is maintained.
Software
watchdog reset
When the MSC8113 watchdog count reaches zero, a software watchdog reset is
signalled. The enabled software watchdog event then generates an internal hard reset
sequence.
Bus monitor
reset
When the MSC8113 bus monitor count reaches zero, a bus monitor hard reset is
asserted. The enabled bus monitor event then generates an internal hard reset
sequence.
JTAG
Commands:
EXTEST,
CLAMP, or
HIGH-Z
When one of JTAG commands EXTEST, CLAMP or HIGHZ is executed, JTAG logic
asserts the JTAG soft reset signal and an internal soft reset sequence is generated.
Summary of Contents for MSC8113
Page 1: ...MSC8113 Reference Manual Tri Core 16 Bit Digital Signal Processor MSC8113RM Rev 0 May 2008 ...
Page 20: ...MSC8113 Reference Manual Rev 0 xx Freescale Semiconductor Contents ...
Page 28: ...MSC8113 Reference Manual Rev 0 xxviii Freescale Semiconductor ...
Page 56: ...MSC8113 Reference Manual Rev 0 1 28 Freescale Semiconductor MSC8113 Overview ...
Page 76: ...MSC8113 Reference Manual Rev 0 2 20 Freescale Semiconductor SC140 Core Overview ...
Page 134: ...MSC8113 Reference Manual Rev 0 4 30 Freescale Semiconductor System Interface Unit SIU ...
Page 168: ...MSC8113 Reference Manual Rev 0 6 18 Freescale Semiconductor Boot Program ...
Page 180: ...MSC8113 Reference Manual Rev 0 7 12 Freescale Semiconductor Clocks ...
Page 260: ...MSC8113 Reference Manual Rev 0 8 80 Freescale Semiconductor Memory Map ...
Page 300: ...MSC8113 Reference Manual Rev 0 9 40 Freescale Semiconductor Extended Core ...
Page 304: ...MSC8113 Reference Manual Rev 0 10 4 Freescale Semiconductor MQBus and M2 Memory ...
Page 308: ...MSC8113 Reference Manual Rev 0 11 4 Freescale Semiconductor SQBus ...
Page 590: ...MSC8113 Reference Manual Rev 0 17 46 Freescale Semiconductor Interrupt Processing ...
Page 614: ...MSC8113 Reference Manual Rev 0 18 24 Freescale Semiconductor Debugging ...
Page 622: ...MSC8113 Reference Manual Rev 0 19 8 Freescale Semiconductor Internal Peripheral Bus IPBus ...
Page 724: ...MSC8113 Reference Manual Rev 0 21 32 Freescale Semiconductor UART ...
Page 920: ...MSC8113 Reference Manual Rev 0 25 150 Freescale Semiconductor Ethernet Controller ...
Page 1171: ...MSC8113 Reference Manual Rev 0 Freescale Semiconductor C 61 EF wait_rts P 01077FFC 9F rts 71 ...
Page 1172: ...MSC8113 Reference Manual Rev 0 C 62 Freescale Semiconductor MSC8113 Boot Code ...
Page 1202: ...MSC8113 Reference Manual Rev 0 Index 30 Freescale Semiconductor Index ...