SPEAR320S datasheet(103/113 Pages) STMICROELECTRONICS

部件名	SPEAR320S

功能描述	Embedded MPU with ARM926 core for industrial and consumer applications

PDF	113 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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103 / 113 page

SPEAr320S

Timing requirements

Doc ID 022508 Rev 2

103/113

5.16.2

SPI slave mode timings

5.17

SPP timing characteristics

This section describes the timing characteristics of the standard parallel port (SPP).

Figure 36.

SPP timing waveform

5.18

UART timing characteristics

Figure 37.

UART transmit and receive waveform

Table 78.

SSP timing characteristics (slave mode)

Symbol

Parameters

Min

Max

Unit

TSSP_CLK

SSP_CLK_IN input clock period

TPCLK*12

254*256*TPCLK

TSSP_CLKHigh SSP_SCK high pulse

TSSP_CLK/2

TSSP_CLKLow SSP_SCK low pulse

TSSP_CLK/2

TSU

Data input setup time

4*TPCLK

Data input hold time

Data output delay

3*TPCLK

4*TPCLK

tSTRB

SPP_DATAx

Valid data

tDS

tDV

tSELIN

SPP_SELINn

SPP_STRBn

SPP_ACKn

tACK

SPP_BUSY

Data read by CPU

tSA

tSB

tSELIN

tINIT

SPP_AUTOFDn

Auto Line Feed

(can be used as 9th

data/parity bit)

SPP_INITn

Start bit

UARTTXD

UARTRXD

Stop Bit

B2-- - B7

Pbit

tBIT

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