MPC8347E datasheet(57/108 Pages) FREESCALE

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MPC8347EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 3

Freescale Semiconductor

SPI

17 SPI

This section describes the SPI DC and AC electrical specifications.

17.1

SPI DC Electrical Characteristics

Table 52 provides the SPI DC electrical characteristics.

17.2

SPI AC Timing Specifications

Table 53 provides the SPI input and output AC timing specifications.

Table 52. SPI DC Electrical Characteristics

Characteristic

Symbol

Condition

Min

Max

Unit

Input high voltage

VIH

2.0

OVDD+0.3

Input low voltage

VIL

–0.3

0.8

Input current

IIN

±5

μA

Output high voltage

VOH

IOH = –8.0 mA

2.4

—

Output low voltage

VOL

IOL = 8.0 mA

—

0.5

Output low voltage

VOL

IOL = 3.2 mA

—

0.4

Table 53. SPI AC Timing Specifications 1

Characteristic

Symbol 2

Min

Max

Unit

SPI outputs valid—Master mode (internal clock) delay

tNIKHOV

6ns

SPI outputs hold—Master mode (internal clock) delay

tNIKHOX

0.5

SPI outputs valid—Slave mode (external clock) delay

tNEKHOV

8ns

SPI outputs hold—Slave mode (external clock) delay

tNEKHOX

2ns

SPI inputs—Master mode (internal clock input setup time

tNIIVKH

4ns

SPI inputs—Master mode (internal clock input hold time

tNIIXKH

0ns

SPI inputs—Slave mode (external clock) input setup time

tNEIVKH

4ns

SPI inputs—Slave mode (external clock) input hold time

tNEIXKH

2ns

Notes:

1. Output specifications are measured from the 50 percent level of the rising edge of CLKIN to the 50 percent level of

the signal. Timings are measured at the pin.

2. The symbols for timing specifications follow the pattern of t(first two letters of functional block)(signal)(state) (reference)(state) for

inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tNIKHOX symbolizes the

internal timing (NI) for the time SPICLK clock reference (K) goes to the high state (H) until outputs (O) are invalid (X).

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