at91sam9g45 ATMEL Corporation, at91sam9g45 Datasheet - Page 6

• Manufacturer Part Number: at91sam9g45
• Description: At91 Arm Thumb-based Microcontrollers
• Manufacturer: ATMEL Corporation

Table 3-1.
6
Signal Name
PC0 - PC31
PD0 - PD31
PE0 - PE31
DDR_D0 -
DDR_D15
DDR_A0 -
DDR_A13
DDR_CLK-
#DDR_CLK
DDR_CKE
DDR_CS
DDR_WE
DDR_RAS-
DDR_CAS
DDR_DQM[0..1]
DDR_DQS[0..1]
DDR_BA0 -
DDR_BA1
DDR_VREF
D0 -D31
A0 - A25
NWAIT
NCS0 - NCS5
NWR0 - NWR3
NRD
NWE
NBS0 - NBS3
CFCE1 - CFCE2
CFOE
CFWE
CFIOR
AT91SAM9G45
Signal Description List (Continued)
Parallel IO Controller C
Parallel IO Controller D
Parallel IO Controller E
Data Bus
Address Bus
DDR differential clock input
DDR Clock Enable
DDR Chip Select
DDR Write Enable
Row and Column Signal
Write Data Mask
Data Strobe
Bank Select
Reference Voltage
Data Bus
External Wait Signal
Chip Select Lines
Write Signal
Read Signal
Write Enable
Byte Mask Signal
CompactFlash Chip Enable
CompactFlash Output Enable
CompactFlash Write Enable
CompactFlash IO Read
Address Bus
Function
DDR Memory Interface- DDR2/SDRAM/LPDDR Controller
Static Memory Controller - SMC
External Bus Interface - EBI
CompactFlash Support
I/O
I/O
I/O
I/O
Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
I/O
Output
Input
Output
Output
Output
Output
Output
Output
Output
Output
Output
Type
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Active
Level
Reference
(1)
(1)
(1)
VDDIOM0
VDDIOM0
VDDIOM0
VDDIOM0
VDDIOM0
VDDIOM0
VDDIOM0
VDDIOM0
VDDIOM0
VDDIOM0
VDDIOM0
VDDIOM1
VDDIOM1
VDDIOM1
VDDIOM1
VDDIOM1
VDDIOM1
VDDIOM1
VDDIOM1
VDDIOM1
VDDIOM1
VDDIOM1
VDDIOM1
Voltage
0 at reset
Comments
Pulled-up input at reset
(100k
Pulled-up input at reset
(100k
Pulled-up input at reset
(100k
Pulled-up input at reset
Pulled-up input at reset
0 at reset
Ω)
Ω)
Ω)
(3)
(3)
(3)
, Schmitt trigger
, Schmitt trigger
, Schmitt trigger
6438CS–ATARM–13-Oct-09