at91sam9g25-cu ATMEL Corporation, at91sam9g25-cu Datasheet - Page 10

• Manufacturer Part Number: at91sam9g25-cu
• Description: At91sam Arm-based Embedded Mpu
• Manufacturer: ATMEL Corporation

4.3
10
I/O Description
SAM9G25
When “Reset State” is mentioned, the configuration is defined by the “Reset State” column of the
Pin Description table.
Table 4-2.
Table 4-1.
GPIO_CLK2
GPIO_CLK
GPIO_ANA
RSTJTAG
EBI_CLK
GPIO_CLK2
I/O Type
GPIO_CLK
GPIO_ANA
EBI_O
RSTJTAG
SYSC
EBI_CLK
GPIO
I/O Type
VBG
USBFS
USBHS
CLOCK
EBI
EBI_O
SYSC
GPIO
VBG
DIB
EBI
I/O Frequency
SAM9G25 I/O Type Assignment and Frequency
SAM9G25 I/O Type Description
(MHz)
1.65-1.95V, 3.0-
1.65-1.95V, 3.0-
1.65-1.95V, 3.0-
Voltage Range
0.25
0.25
133
133
40
54
75
25
66
10
1.65-3.6V
1.65-3.6V
1.65-3.6V
1.65-3.6V
1.65-3.6V
3.0-3.6V
3.0-3.6V
0.9-1.1V
3.0-3.6V
3.0-3.6V
3.0-3.6V
3.6V
3.6V
3.6V
Charge Load
50 (3.3V)
30 (1.8V)
50 (3.3V)
30 (1.8V)
(pF)
10
10
10
10
10
10
10
10
Analog
I/O
I/O
I/O
I/O
I
I
40mA (peak)
Current
Output
16mA,
Reset State
Reset State
Reset State
switchable
switchable
switchable
switchable
switchable
Pull-up
all Address and control lines (output only) except the
NRST, NTRST, BMS, TCK, TDI, TMS, TDO, RTCK
all Data lines (Input/output) except the following
MCI0CK, MCI1CK, SPI0SPCK, SPI1SPCK,
WKUP, SHDN, JTAGSEL, TST, SHDN
all PIO lines except the following
EMACx_ETXCK, ISI_MCK
Reset State
Reset State
Reset State
Pull-down
switchable
switchable
switchable
switchable
Signal Name
ADx, GPADx
following
CK, #CK
VBG
11032AS–ATARM–27-Jul-11
Schmitt Trigger
Reset State
Reset State
switchable
switchable
switchable
switchable