HCS12 datasheet(325/452 Pages) FREESCALE

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HCS12 데이터시트(PDF) 325 Page - Freescale Semiconductor, Inc

부품명	HCS12

상세설명	HCS12 Microcontrollers

PDF	452 Pages

Scroll/Zoom	100%

제조업체	FREESCALE [Freescale Semiconductor, Inc]

홈페이지	http://www.freescale.com

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325 / 452 page

S12CPUV2 Reference Manual, Rev. 4.0

Freescale Semiconductor

325

Figure 8-1. Queue Status Signal Timing (HCS12)

8.3.2 M68HC12 Timing Detail

In the M68HC12, data movement information is available on rising edges of

the E clock; execution start information is available on falling edges of the E

clock, as shown in Figure 8-2. Data movement information refers to data on

the bus at the previous falling edge of E. Execution information refers to the

bus cycle from the current falling edge to the next falling edge of E.

Table 8-1 summarizes the information encoded on the IPIPE1 and IPIPE0

pins.

E CLOCK

ADDRESS

DATA

IPIPE[1:0]

ADDR0

ADDR1

DATA0

DATA1

EX0

DM0

EX1

DM1

CYCLE 0

CYCLE 1

EX1 REFERS TO

THIS CYCLE

DM0 REFERS TO DATA

CAPTURED AT THE END

OF CURRENT E-HIGH PERIOD

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