參數(shù)資料
型號: MSC8122TVT4800V
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
元件分類: 數(shù)字信號處理
英文描述: Quad Core 16-Bit Digital Signal Processor
中文描述: 四核16位數(shù)字信號處理器
文件頁數(shù): 50/88頁
文件大小: 983K
代理商: MSC8122TVT4800V
MSC8122 Technical Data, Rev. 13
2-16
Freescale Semiconductor
Specifications
2.5.6
The timings in the following sections are based on a 20 pF capacitive load.
DSI Timing
2.5.6.1 DSI Asynchronous Mode
Table 2-17.
DSI Asynchronous Mode Timing
No.
Characteristics
Min
Max
Unit
100
101
102
Attributes
1
set-up time before strobe (HWBS[n]) assertion
Attributes
1
hold time after data strobe deassertion
Read/Write data strobe deassertion width:
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
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
Read/Write data strobe assertion to HTA valid
2
1.1 V core
1.2 V core
Read/Write data strobe deassertion to output HTA high impedance.
(DCR[HTAAD] = 0, HTA at end of access released at logic 0)
Read/Write data strobe deassertion to output HTA deassertion.
(DCR[HTAAD] = 1, HTA at end of access released at logic 1)
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
Read/Write data strobe assertion width
Host data input set-up time before write data strobe deassertion
Host data input hold time after write data strobe deassertion
1.1 V core
1.2 V core
1.
Attributes
refers to the following signals: HCS, HA[11–29], HCID[0–4], HDST, HRW, HRDS, and HWBSn.
2.
This specification is tested in dual-strobe mode. Timing in single-strobe mode is guaranteed by design.
3.
All values listed in this table are tested or guaranteed by design.
1.5
1.3
ns
ns
1.8 + T
REFCLK
5 + T
REFCLK
5 + (1.5
×
T
REFCLK
)
5 + (2.5
×
T
REFCLK
)
1.8 + T
REFCLK
2.0
2.2
2.2
3.2
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
103
104
105
106
107
108
8.5
7.4
6.7
6.5
ns
ns
ns
109
110
6.5
ns
111
5 + T
REFCLK
5 + (1.5
×
T
REFCLK
)
5 + (2.5
×
T
REFCLK
)
ns
ns
ns
ns
ns
112
201
202
1.8 + T
REFCLK
1.0
1.7
1.5
ns
ns
Notes:
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