Datasheet

Electrical Characteristics
MCF5208 ColdFire
®
Microprocessor Data Sheet, Rev. 3
Freescale Semiconductor 33
Figure 19. DDR Read Timing
5.9 General Purpose I/O Timing
Table 14. GPIO Timing
1
NOTES:
1
GPIO spec cover: IRQn, UART and Timer pins.
Num Characteristic Symbol Min Max Unit
G1 FB_CLK High to GPIO Output Valid t
CHPOV
—8ns
G2 FB_CLK High to GPIO Output Invalid t
CHPOI
1.5 — ns
G3 GPIO Input Valid to FB_CLK High t
PVCH
8—ns
G4 FB_CLK High to GPIO Input Invalid t
CHPI
1.5 — ns
SD_CLK
SD_CS
n, SD_WE,
SD_DQS3/SD_DQS2
D[31:24]/D[23:16]
A[13:0]
SD_RAS
, SD_CAS
CMD
ROW
DD1
DD5
DD4
WD1 WD2 WD3 WD4
SD_DQS3/SD_DQS2
DD9
SD_CLK
DD3
DD2
D[31:24]/D[23:16]
WD1 WD2 WD3 WD4
DD10
CL=2
CL=2.5
COL
DQS Read
Preamble
DQS Read
Postamble
DQS Read
Preamble
DQS Read
Postamble
CL = 2.5 CL = 2