MSC8113 Reference Manual, Rev. 0
5-6
Freescale Semiconductor
Reset
5.2.2 Reset Configuration Through the System Bus
The reset configuration write through the system bus allows external hardware to program the
Hard Reset Configuration Word (via the system data bus) after
PORESET
is deasserted. The
values driven on
CNFGS
and
RSTCONF
at the rising edge of
PORESET
determine the MSC8113
configuration mode. If the value is “01” the MSC8113 acts as a configuration slave. If the value
is “00” the MSC8113 acts as a configuration master. Immediately after
PORESET
is deasserted
and the reset operation mode is designated as configuration master or slave, the MSC8113 starts
the configuration process by asserting
HRESET
and
SRESET
throughout internal power-on reset.
The reset configuration sequence requires 1024
CLKIN
cycles.
In a typical multi-
MSC8113 system, one MSC8113 acts as the configuration master and all other
MSC8113 devices act as configuration slaves. The configuration master reads the various
HRCWs from external memory and uses them to configure itself as well as the configuration
slaves. If the MSC8113 is a configuration slave and the HRCW is not written during the 1024
CLKIN
cycles, it gets a default value of all zeros, which is the reset value of the HRCW described
in Section 5.6.1, Hard Reset Configuration Word. Examples of various MSC8113 system bus
configurations are given in Section 5.5, Reset Configuration Writes Through the System Bus.
Figure 5-2. Configuring Multiple MSC8113s From the DSI Port
V
CC
V
CC
HD[0–31]
HCID[0–3]
CNFGS
PORESET
HRESET
Host
HWBS0
RSTCONF
HCS
HBCS
CHIP_ID[0–3]
CHIP_ID[0–3]
CHIP_ID[0–3]
“0”
“14”
“15”
D[0–31]
Chip ID[0–3]
WR
CS2
CS3
reset_out
host_reset_in
(HRESET)
(PORESET)
HRESET
HRESET
MSC8113
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 ...