OMAP-L132_14 Datasheet, PDF (109/232 Pages) Texas Instruments – DSP+ ARM Processor

www.ti.com
OMAP-L132
SPRS762D – AUGUST 2011 – REVISED MARCH 2014
6.10.6 EMIFA Electrical Data/Timing
Table 6-21 through Table 6-24 assume testing over recommended operating conditions.
Table 6-21. Timing Requirements for EMIFA SDRAM Interface
NO.
19
t_{su(EMA_DV-EM_CLKH)}
Input setup time, read data valid on EMA_D[15:0] before
EMA_CLK rising
20 t_h(CLKH-DIV)
Input hold time, read data valid on EMA_D[15:0] after
EMA_CLK rising
1.2V
1.1V
1.0V
UNIT
MIN MAX MIN MAX MIN MAX
2
3
3
ns
1.6
1.6
1.6
ns
NO.
1 t_c(CLK)
2 t_w(CLK)
3 t_d(CLKH-CSV)
4 t_{oh(CLKH-CSIV)}
5 t_d(CLKH-DQMV)
6 t_{oh(CLKH-DQMIV)}
7 t_d(CLKH-AV)
8 t_oh(CLKH-AIV)
9 t_d(CLKH-DV)
10 t_oh(CLKH-DIV)
11 t_d(CLKH-RASV)
12 t_{oh(CLKH-RASIV)}
13 t_d(CLKH-CASV)
14 t_{oh(CLKH-CASIV)}
15 t_d(CLKH-WEV)
16 t_{oh(CLKH-WEIV)}
17 t_{dis(CLKH-DHZ)}
18 t_{ena(CLKH-DLZ)}
Table 6-22. Switching Characteristics for EMIFA SDRAM Interface
PARAMETER
Cycle time, EMIF clock EMA_CLK
Pulse width, EMIF clock EMA_CLK high or low
Delay time, EMA_CLK rising to EMA_CS[0] valid
Output hold time, EMA_CLK rising to EMA_CS[0] invalid
Delay time, EMA_CLK rising to EMA_WE_DQM[1:0] valid
Output hold time, EMA_CLK rising to EMA_WE_DQM[1:0]
invalid
Delay time, EMA_CLK rising to EMA_A[12:0] and
EMA_BA[1:0] valid
Output hold time, EMA_CLK rising to EMA_A[12:0] and
EMA_BA[1:0] invalid
Delay time, EMA_CLK rising to EMA_D[15:0] valid
Output hold time, EMA_CLK rising to EMA_D[15:0] invalid
Delay time, EMA_CLK rising to EMA_RAS valid
Output hold time, EMA_CLK rising to EMA_RAS invalid
Delay time, EMA_CLK rising to EMA_CAS valid
Output hold time, EMA_CLK rising to EMA_CAS invalid
Delay time, EMA_CLK rising to EMA_WE valid
Output hold time, EMA_CLK rising to EMA_WE invalid
Delay time, EMA_CLK rising to EMA_D[15:0] tri-stated
Output hold time, EMA_CLK rising to EMA_D[15:0] driving
1.2V
MIN MAX
10
3
7
1
7
1.1V
MIN MAX
15
5
9.5
1
9.5
1.0V
UNIT
MIN MAX
20
ns
8
ns
13 ns
1
ns
13 ns
1
1
1
ns
7
9.5
13 ns
1
1
1
ns
7
9.5
13 ns
1
1
1
ns
7
9.5
13 ns
1
1
1
ns
7
9.5
13 ns
1
1
1
ns
7
9.5
13 ns
1
1
1
ns
7
9.5
13 ns
1
1
1
ns
Copyright © 2011–2014, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications 109
Submit Documentation Feedback
Product Folder Links: OMAP-L132