参数资料
型号: KMC8144SVT800B
厂商: Freescale Semiconductor
文件页数: 37/80页
文件大小: 0K
描述: IC DSP 783FCPBGA
标准包装: 2
系列: StarCore
类型: SC3400 内核
接口: EBI/EMI,以太网,I²C,PCI,Serial RapidIO,SPI,TDM,UART,UTOPIA
时钟速率: 800MHz
非易失内存: ROM(96 kB)
芯片上RAM: 10.5MB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.00V
工作温度: 0°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 783-BBGA,FCBGA
供应商设备封装: 783-FCPBGA(29x29)
包装: 托盘
Electrical Characteristics
Table 18. Reset Actions for Each Reset Source (continued)
Reset Action/Reset Source
Power-On Reset
(PORESET)
Hard Reset (HRESET)
Soft Reset (SRESET)
External or Internal
External or
JTAG Command:
External only
(Software Watchdog,
Software or RapidIO)
internal
Software
EXTEST, CLAMP, or
HIGHZ
HRESET driven
IPBus modules reset (TDM, UART, SWT,
Yes
Yes
Yes
Yes
No
Yes
No
Yes
DDRC, IPBus master, GIC, HS, and GPIO)
SRESET driven
Extended cores reset
CLASS registers reset
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Some
Depends on command
Yes
Some registers
registers
Timers, Performance Monitor
QUICC Engine subsystem, PCI, DMA
Yes
Yes
Yes
Yes
No
Most
No
Most registers
registers
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 32 CLKIN cycles after
V DD and V DDIO are both at their nominal levels.
2.6.3.2
Reset Configuration
The MSC8144 has two mechanisms for writing the reset configuration:
?
?
?
Through the I 2 C port
Through external pins
Through internal hard coded
Twenty-three signals (see Section 1 for signal description details) are sampled during the power-on reset sequence to define the
Reset Word Configuration Source and operating conditions:
?
?
RCW_SRC[2–0]
RC[16–0]
The RCFG_CLKIN_RNG pin must be valid during power-on or hard reset sequence. The STOP_BS pin must be always valid
and is also sampled during power-on reset sequence for RCW loading from an I 2 C EEPROM.
2.6.3.3 Reset Timing Tables
Table 19 and Figure 7 describe the reset timing for a reset configuration.
Table 19. Timing for a Reset Configuration Write
No.
Characteristics
Expression
Max
Min
Unit
1
Required external PORESET duration minimum
32/CLKIN
? 33 MHz <= CLKIN < 44 MHz
? 44 MHz <= CLKIN < 66 MHz
? 66 MHz <= CLKIN < 100 MHz
? 100 MHz <= CLKIN < 133 MHz
1280
728
485
320
727
484
320
241
ns
ns
ns
ns
MSC8144 Quad Core Digital Signal Processor Data Sheet, Rev. 16
Freescale Semiconductor
37
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