TMS320F2811 datasheet(111/173 Pages) TI

111 / 173 page

Electrical Specifications

111

April 2001 − Revised July 2007

SPRS174O

Table 6−14. HALT Mode Timing Requirements

MIN

NOM

MAX

UNIT

tw(WAKE-XNMI)

Pulse duration, XNMI wakeup signal

2tc(CI)

Cycles

tw(WAKE-XRS)

Pulse duration, XRS wakeup signal

8tc(CI)

Cycles

Table 6−15. HALT Mode Switching Characteristics

PARAMETER

MIN

TYP

MAX

UNIT

td(IDLE-XCOH)

Delay time, IDLE instruction executed to XCLKOUT high

32tc(SCO)

45tc(SCO)

Cycles

PLL lock-up time

131 072tc(CI) Cycles

Delay time, PLL lock to program execution resume

td(wake)

− Wake-up from flash

− Flash module in sleep state

1125tc(SCO) Cycles

− Wake-up from SARAM

35tc(SCO) Cycles

† XCLKOUT = SYSCLKOUT

NOTES: A. IDLE instruction is executed to put the device into HALT mode.

B. The PLL block responds to the HALT signal. SYSCLKOUT is held for another 32 cycles before the oscillator is turned off and the

CLKIN to the core is stopped. This 32-cycle delay enables the CPU pipe and any other pending operations to flush properly.

C. Clocks to the peripherals are turned off and the internal oscillator and PLL are shut down. The device is now in HALT mode and

consumes absolute minimum power.

D. When XNMI is driven active, the oscillator is turned on; but the PLL is not activated. The pulse duration of 2tc(CI) is applicable when

an external oscillator is used. If the internal oscillator is used, the oscillator wake-up time should be added to this parameter.

E. When XNMI is deactivated, it initiates the PLL lock sequence, which takes 131,072 X1/XCLKIN cycles.

F. When CLKIN to the core is enabled, the device will respond to the interrupt (if enabled), after a latency. The HALT mode is now

exited.

G. Normal operation resumes.

td(IDLE−XCOH)

32 SYSCLKOUT Cycles

X1/XCLKIN

XCLKOUT†

HALT

Wake-up Latency

Flushing Pipeline

td(wake)

Device

Status

PLL Lock-up Time

XNMI

Normal

Execution

tw(WAKE-XNMI)

Oscillator Start-up Time

Figure 6−17. HALT Wakeup Using XNMI

TMS320F2811 数据表(PDF) 111 Page - Texas Instruments

TMS320F2811 数据表(HTML) 111 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载

链接网址

TMS320F2811 数据表(PDF) 111 Page - Texas Instruments

TMS320F2811 数据表(HTML) 111 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表 下载

链接网址

数据表下载