M5271EVB Freescale Semiconductor, M5271EVB Datasheet - Page 29

• Manufacturer Part Number: M5271EVB
• Description: BOARD EVAL FOR MCF5270/71
• Manufacturer: Freescale Semiconductor

Specifications of M5271EVB

• Processor To Be Evaluated: MCF5271
• Interface Type: RS-232, Ethernet
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 12
7.7
Freescale Semiconductor
1
NUM
GPIO pins include: INT, UART, Timer, DREQn and DACKn pins.
G1
G2
G3
G4
General Purpose I/O Timing
shows an SDRAM write cycle.
CLKOUT High to GPIO Output Valid
CLKOUT High to GPIO Output Invalid
GPIO Input Valid to CLKOUT High
CLKOUT High to GPIO Input Invalid
SD_SCAS
SD_SRAS
RAS[1:0]
SD_CKE
CAS[3:0]
SD_WE
A[23:0]
D[31:0]
D2
D2
D2
D1
1
1
DACR[CASL] = 2
MCF5271 Integrated Microprocessor Hardware Specification, Rev. 4
0
ACTV
D7
Row
Characteristic
1
2
Figure 12. SDRAM Write Cycle
NOP
D2
Table 14. GPIO Timing
D3
3
4
D4
WRITE
5
6
NOP
7
1
Symbol
t
t
CHPOV
t
CHPOI
t
8
PVCH
Column
CHPI
PALL
D8
D4
9
10
Min
1.5
1.5
—
9
D4
11
Electrical Characteristics
12
Max
10
—
—
—
Unit
ns
ns
ns
ns
29