mcf54455 Freescale Semiconductor, Inc, mcf54455 Datasheet - Page 32

• Manufacturer Part Number: mcf54455
• Description: 32-bit Microprocessor With Usb On-the-go, Ethernet, Pci, Ddr2/ddr Controller And Encryption
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
32
1
Num
S11
S12
S13
S14
S15
S16
S17
S18
All timings specified with a capactive load of 25pF.
SSI_MCLK
SSI_BCLK
SSI_RXD
SSI_TXD
(Output)
(Output)
SSI_FS
(Output)
SSI_FS
(Input)
SSI_BCLK cycle time
SSI_BCLK pulse width high / low
SSI_FS input setup before SSI_BCLK
SSI_FS input hold after SSI_BCLK
SSI_BCLK to SSI_TXD / SSI_FS output valid
SSI_BCLK to SSI_TXD / SSI_FS output invalid / high
impedence
SSI_RXD setup before SSI_BCLK
SSI_RXD hold after SSI_BCLK
MCF5445x ColdFire
Description
S5
S7
Figure 16. SSI Timing — Master Modes
S4
Table 17. SSI Timing — Slave Modes
S9
S9
S1
S3
S10
®
Microprocessor Data Sheet, Rev. 0
S4
S8
S2
S7
Symbol
t
BCLK
8 × t
45%
Min
1
10
10
—
2
0
2
SYS
S2
55%
Max
15
—
—
—
—
—
—
S6
Freescale Semiconductor
Units
t
BCLK
ns
ns
ns
ns
ns
ns
ns
S8
S10
Notes