參數(shù)資料
型號: MSC8102M4000
廠商: MOTOROLA INC
元件分類: 數(shù)字信號處理
英文描述: 32-BIT, 75 MHz, OTHER DSP, CBGA431
封裝: 20 X 20 MM, FLIP CHIP, CERAMIC, BGA-431
文件頁數(shù): 30/96頁
文件大小: 1557K
代理商: MSC8102M4000
2-6
AC Timings
2.6.3.1 Power-On Reset (PORESET) Pin
Asserting PORESET initiates the power-on reset flow. PORESET must be asserted externally for at least
16 CLKIN cycles after external power to the MSC8102 reaches at least 2/3 VDD.
2.6.3.2 Reset Configuration
The MSC8102 has two mechanisms for writing the reset configuration:
Through the direct slave interface (DSI), or
Through the system bus
When reset configuration written through the system bus, the MSC8102 uses as a configuration master or
as a configuration slave. If a configuration slave is selected, but no special configuration word is written,
a default configuration word is applied. Fourteen signal levels (see Chapter 1 for signal description
details) are sampled on PORESET deassertion to define the Reset Configuration Mode and boot and
operating conditions:
RSTCONF
CNFGS
DSISYNC
DSI64
CHIP_ID[0–3]
BM[0–2]
SWTE
MODCK[1–2]
2.6.3.3 Reset Timing Tables
Table 2-10 and Figure 2-1 describe the reset timing for a reset configuration write through the direct
slave interface (DSI) or through the system bus.
Table 2-9. Reset Actions for Each Reset Source
Reset Action/Reset Source
Power-On
Reset
(PORESET)
Hard Reset
(HRESET)
Soft Reset (SRESET)
External only
External or
Internal
(Software
Watchdog or
Bus Monitor)
External
JTAG Command:
EXTEST, CLAMP, or
HIGHZ
Configuration Pins Sampled (Refer to Section 2.6.3.1 for details).
Yes
No
SPLL and DLL States Reset
Yes
No
System Reset Configuration write through the DSI
Yes
No
System Reset Configuration write though the System Bus
Yes
No
HRESET Driven
Yes
No
SIU Registers reset
Yes
No
IPBus Modules Reset (TDM, UART, Timers, DSI, IPBus Master,
GIC, HS, and GPIO)
Yes
SRESET Driven
Yes
Depends on command
SC140 Extended Cores Reset
Yes
MQBS Reset
Yes
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