Datasheet

Electrical and Thermal Characteristics

MPC5200 Data Sheet, Rev. 4

Freescale Semiconductor 33

Figure 14. Timing Diagram—MUXed Mode

3.3.8 ATA

The MPC5200 ATA Controller is completely software programmable. It can be programmed to operate

with ATA protocols using their respective timing, as described in the ANSI ATA-4 specification. The ATA

interface is completely asynchronous in nature. Signal relationships are based on specific fixed timing in

terms of timing units (nano seconds).

ATA data setup and hold times, with respect to Read/Write strobes, are software programmable inside the

ATA Controller. Data setup and hold times are implemented using counters. The counters count the

number of ATA clock cycles needed to meet the ANSI ATA-4 timing specifications. For details, see the

ANSI ATA-4 specification [5] and how to program an ATA Controller and ATA drive for different ATA

protocols and their respective timing. See the MPC5200 User Manual [1].

PCI CLK

AD[24:0] (wr)

CSx

ALE

AD[30:28] (wr)

AD[26:25] (wr)

AD[31,27] (wr)

Address[7:31]

Bank[0:1] bits

TSIZ[0:2] bits

ACK

Data

Data tenureAddress tenure

Data

AD[31:0] (rd)

Data

t13

Address latch

t11

t12

t10