MSC8113 Reference Manual, Rev. 0
5-10
Freescale Semiconductor
Reset
5.5.2 Single Slave MSC8113 Configuration by System Bus Host
For a single-MSC8113 system with no EPROM, you can configure the MSC8113 as a
configuration slave by driving a value of “01” on
CNFGS
and
RSTCONF
during
PORESET
assertion
and then applying a negative pulse on
RSTCONF
and an appropriate HRCW on the MSC8113
system data bus
D[0–31]
. The negative pulse must occur within the 1024 configuration slave
CLKIN
cycles after the configuration slave
PORESET
ends. Figure 5-5 shows an example an arbitrary
configuration master and an MSC8113 device configured as configuration slave. The host should
finish its own wake-up reset sequence before waking the slave. The host
WE
is used to apply the
negative pulse on
RSTCONF
.
5.5.3 Multi-MSC8113 System Configuration
The sequence of reset configuration write through the system bus, which occurs during hard
reset, supports a system that uses up to eight MSC8113 devices, each configured differently. It
needs no additional glue logic for reset configuration. In a typical multi-MSC8113 system, one
MSC8113 device acts as the configuration master and all other MSC8113 devices act as
configuration slaves. The configuration master reads the various HRCWs from EPROM and uses
them to configure itself as well as the configuration slaves. The reset mode that determines the
MSC8113 behavior during reset configuration write through the system bus is specified by the
value of
CNFGS
and
RSTCONF
on
PORESET
deassertion. During system bus configuration, which
occurs after
PORESET
deassertion, the
RSTCONF
input of the configuration master is tied to
ground, and the
RSTCONF
inputs of other devices connect to the high-order address bits of the
configuration master, as shown in Table 5-6.
Note:
The value of
RSTCONF
during
PORESET
may differ from its value after
PORESET
deassertion, which is then used for the system bus configuration sequence.
Figure 5-5. Single MSC8113 Slave Configuration
Table 5-6.
RSTCONF
Connections in Multi-MSC8113 Systems
Configured Device
RSTCONF Connection
Configuration master
GND
First configuration slave
A0
Second configuration slave
A1
Third configuration slave
A2
Fourth configuration slave
A3
Configuration Master
PORESET
D[0–31]
WE
Configuration Slave
D[0–31]
RSTCONF
PORESET
reset_out
HRESET
V
CC
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 ...