Atmel Evaluation Kit AT91SAM9G25-EK AT91SAM9G25-EK データシート
製品コード
AT91SAM9G25-EK
11
SAM9G25 [DATASHEET]
11032C–ATARM–25-Jan-13
4.3
I/O Description
When “Reset State” is mentioned, the configuration is defined by the “Reset State” column of the Pin Description table.
Table 4-1.
SAM9G25 I/O Type Description
I/O Type
Voltage Range
Analog
Pull-up
Pull-down
Schmitt Trigger
GPIO
1.65-3.6V
Switchable
Switchable
Switchable
GPIO_CLK
1.65-3.6V
Switchable
Switchable
Switchable
GPIO_CLK2
1.65-3.6V
Switchable
Switchable
Switchable
GPIO_ANA
3.0-3.6V
I
Switchable
Switchable
EBI
1.65-1.95V, 3.0-
3.6V
Switchable
Switchable
EBI_O
1.65-1.95V, 3.0-
3.6V
Reset State
Reset State
EBI_CLK
1.65-1.95V, 3.0-
3.6V
RSTJTAG
3.0-3.6V
Reset State
Reset State
Reset State
SYSC
1.65-3.6V
Reset State
Reset State
Reset State
VBG
0.9-1.1V
I
USBFS
3.0-3.6V
I/O
USBHS
3.0-3.6V
I/O
CLOCK
1.65-3.6V
I/O
DIB
3.0-3.6V
I/O
Table 4-2.
SAM9G25 I/O Type Assignment and Frequency
I/O Type
I/O Frequency
(MHz)
Charge Load
(pF)
Output
Current
Signal Name
GPIO
40
10
All PIO lines except the following
GPIO_CLK
54
10
MCI0CK, MCI1CK, SPI0SPCK, SPI1SPCK,
EMACx_ETXCK, ISI_MCK
GPIO_CLK2
75
10
GPIO_ANA
25
10
16 mA,
40 mA (peak)
ADx, GPADx
EBI
133
50 (3.3V)
30 (1.8V)
All Data lines (Input/output) except the following
EBI_O
66
50 (3.3V)
30 (1.8V)
All Address and control lines (output only) except the
following
EBI_CLK
133
10
CK, #CK
RSTJTAG
10
10
NRST, NTRST, BMS, TCK, TDI, TMS, TDO, RTCK
SYSC
0.25
10
WKUP, SHDN, JTAGSEL, TST, SHDN
VBG
0.25
10
VBG
USBFS
12
10
HFSDPA, HFSDPB/DFSDP, HFSDPC, HFSDMA,
HFSDMB/DFSDM, HFSDMC