mcimx27- Freescale Semiconductor, Inc, mcimx27- Datasheet - Page 49

• Manufacturer Part Number: mcimx27-
• Description: Multimedia Applications Processor
• Manufacturer: Freescale Semiconductor, Inc

mode. There are different requirements of timing relationships among the function pins conform with
ATA/ATAPI-6 specification and these requirements are configurable by the ATA module registers.
Below defines the AC characteristics of all the interface signals on all data transfer modes.
3.5.3.1
These are the general timing requirements for the ATA interface signals.
NOTE:
3.5.4
The AUDMUX provides a programmable interconnect logic for voice, audio and data routing between
internal serial interfaces (SSI, SAP) and external serial interfaces (audio and voice codecs). The AC timing
of AUDMUX external pins is hence governed by SSI and SAP modules. Please refer to their respective
electrical specifications.
3.5.5
This section describes the electrical information (AC timing) of the CSI.
Freescale Semiconductor
SI1
SI2
SI3
amplitude with all capacitive loads from 15 pf through 40 pf where all signals have the same capacitive load value.
ID
ATA Interface Signals
SRISE and SFALL meets this requirement when measured at the sender’s connector from 10–90% of full signal
Rising edge slew rate for any signal on ATA
interface (see note)
Falling edge slew rate for any signal on ATA
interface (see note)
Host interface signal capacitance at the host
connector
Digital Audio Mux (AUDMUX)
CMOS Sensor Interface (CSI)
General Timing Requirements
Parameter
Table 20. AC Characteristics of All Interface Signals
Figure 8. ATA interface Signals Timing Diagram
Preliminary—Subject to Change Without Notice
i.MX27 and i.MX27L Data Sheet, Rev. 1.2
SI2
Symbol
C
S
S
host
rise
fall
SI1
Min
—
—
—
Max
1.25
1.25
20
Signal Descriptions
Unit
V/ns
V/ns
pF
49