参数资料
型号: MSC8122ADSE
厂商: Freescale Semiconductor
文件页数: 28/48页
文件大小: 0K
描述: KIT ADVANCED DEV SYSTEM 8122
标准包装: 1
系列: StarCore
类型: DSP
适用于相关产品: MSC8122
所含物品:
相关产品: MSC8122TVT6400-ND - DSP 16BIT 400MHZ MULTI 431FCPBGA
MSC8122TMP6400V-ND - DSP 16BIT 400MHZ MULTI 431FCPBGA
MSC8122TMP6400-ND - DSP 16BIT 400MHZ MULTI 431FCPBGA
MSC8122TMP4800V-ND - DSP 16BIT 300MHZ MULTI 431FCPBGA
MSC8122MP8000-ND - DSP 16BIT 500MHZ MULTI 431FCPBGA
MSC8122VT8000-ND - IC DSP QUAD 16B 500MHZ 431FCPBGA
MSC8122TVT6400V-ND - IC DSP QUAD 16B 400MHZ 431FCPBGA
MSC8122TVT4800V-ND - IC DSP QUAD 16B 300MHZ 431FCPBGA
Electrical Characteristics
2.5.6
DSI Timing
The timings in the following sections are based on a 20 pF capacitive load.
2.5.6.1 DSI Asynchronous Mode
Table 18. DSI Asynchronous Mode Timing
No.
100
101
102
Characteristics
Attributes 1 set-up time before strobe (HWBS[n]) assertion
Attributes 1 hold time after data strobe deassertion
Read/Write data strobe deassertion width:
Min
1.5
1.3
Max
Unit
ns
ns
? DCR[HTAAD] = 1
— Consecutive access to the same DSI
— Different device with DCR[HTADT] = 01
— Different device with DCR[HTADT] = 10
— Different device with DCR[HTADT] = 11
? DCR[HTAAD] = 0
1.8 + T REFCLK
5 + T REFCLK
5 + (1.5 × T REFCLK )
5 + (2.5 × T REFCLK )
1.8 + T REFCLK
ns
ns
ns
ns
ns
103
104
105
106
107
Read data strobe deassertion to output data high impedance
Read data strobe assertion to output data active from high impedance
Output data hold time after read data strobe deassertion
Read/Write data strobe assertion to HTA active from high impedance
Output data valid to HTA assertion
2.0
2.2
2.2
3.2
8.5
ns
ns
ns
ns
ns
108
Read/Write data strobe assertion to HTA valid 2
? 1.1 V core
? 1.2 V core
7.4
6.7
ns
ns
109
Read/Write data strobe deassertion to output HTA high impedance.
6.5
ns
(DCR[HTAAD] = 0, HTA at end of access released at logic 0)
110
Read/Write data strobe deassertion to output HTA deassertion.
6.5
ns
(DCR[HTAAD] = 1, HTA at end of access released at logic 1)
111
Read/Write data strobe deassertion to output HTA high impedance.
(DCR[HTAAD] = 1, HTA at end of access released at logic 1
? DCR[HTADT] = 01
? DCR[HTADT] = 10
? DCR[HTADT] = 11
5 + T REFCLK
5 + (1.5 × T REFCLK )
5 + (2.5 × T REFCLK )
ns
ns
ns
112
201
Read/Write data strobe assertion width
Host data input set-up time before write data strobe deassertion
1.8 + T REFCLK
1.0
ns
ns
202
Host data input hold time after write data strobe deassertion
? 1.1 V core
? 1.2 V core
1.7
1.5
ns
ns
Notes:
28
1.
2.
3.
Attributes refers to the following signals: HCS, HA[11–29], HCID[0–4], HDST, HRW, HRDS, and HWBSn.
This specification is tested in dual-strobe mode. Timing in single-strobe mode is guaranteed by design.
All values listed in this table are tested or guaranteed by design.
MSC8122 Quad Digital Signal Processor Data Sheet, Rev. 16
Freescale Semiconductor
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