Difference between revisions of "Hardware/EIR/Expansion"
(Created page with "<div id="content"> = EIR Expansion Port = == Expansion Connector K1 == Pin GPIO Periph.<br /> A Periph.<br /> B Usage 1 PA0 PWM0 A0/NBS0 '''Available for external hardwar...") |
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Latest revision as of 10:57, 13 July 2017
Contents
EIR Expansion Port
Expansion Connector K1
Pin
GPIO
Periph.
A
Periph.
B
Usage
1
PA0
PWM0
A0/NBS0
Available for external hardware, can permanently drive up to 16mA.
2
PA1
PWM1
A1/NBS1
3
PA2
PWM2
A2
4
PA3
TWD
A3
I2C Bus to RTC, available for external I2C devices
5
PA4
TWCK
A4
6
PA5
RXD0
A5
USART0 RS232 Rx/Tx via JP1
7
PA6
TXD0
A6
8
PA7
RTS0
A7
USART0 RS232 Hardware Handshake
9
PA8
CTS0
A8
10
PA9
DRXD
A9
DBGU RS232 Rx/Tx via JP1
11
PA10
DTXD
A10
12
PA11
NPCS0
A11
DataFlash Chip Select
13
PA12
MISO
A12
SPI Bus to MP3 Decoder and DataFlash, available for external SPI devices
14
PA13
MOSI
A13
15
PA14
SPCK
A14
16
PA15
TF
A15
MMC Chip Select
17
PA16
TK
A16/BA0
MMC Clock
18
PA17
TD
A17/BA1
MMC Command
19
PA18
RD
NBS3/CFIOW
MMC DAT0
20
PA19
RK
NCS4/CFCS0
MMC DAT1 via R7
21
PA20
RF
NCS2/CFCS1
MMC DAT2 via R8 and Ethernet Chip Select
22
PA21
RXD1
NCS6/CFCE2
Available for external hardware, e.g. 3rd UART
23
PA22
TXD1
NCS5/CFCE1
24
PA23
SCK1
NWR1/NBS1/CFIOR
SDRAM DQMH
25
PA24
RTS1
SDA10
SDRAM A10
26
PA25
CTS1
SDCKE
SDRAM CKE
27
PA26
DCD1
NCS1/SDCS
SDRAM Chip Select
28
PA27
DTR1
SDWE
SDRAM WE
29
PA28
DSR1
CAS
SDRAM CAS
30
PA29
RI1
RAS
SDRAM RAS
31
PA30
IRQ1
D30
MP3 Decoder Interrupt
32
PA31
NPCS1
D31
MP3 Decoder Command Select
33
Vref
A/D Converter Reference
34
3.3V
Regulated 3.3V Power Supply, up to 500mA are available for external hardware
35
AD4
Four Analog Inputs, available for external hardware
36
AD5
37
AD6
38
AD7
39
GND
Ground
40
GND
Expansion Connector K2
Pin
GPIO
Periph.
A
Periph.
B
Note
1
PB0
TIOA0
A0/NBS0
SDRAM DQML
2
PB1
TIOB0
A1/NBS2
Available, but reserved for External Address Bus Bit 1
3
PB2
SCK0
A2
External Address Bus, Bits 2..11
4
PB3
NPCS3
A3
5
PB4
TCLK0
A4
6
PB5
NPCS3
A5
7
PB6
PCK0
A6
8
PB7
PWM3
A7
9
PB8
ADTRG
A8
10
PB9
NPCS1
A9
11
PB10
NPCS2
A10
12
PB11
PWM0
A11
13
PB12
PWM1
A12
Available, but reserved for External Address Bus Bit 12
14
PB13
PWM2
A13
External Address Bus, Bits 13..14
15
PB14
PWM3
A14
16
PB15
TIOA1
A15
Available, but reserved for External Address Bus Bit 15
17
PB16
TIOB1
A16/BA0
SDRAM BA0
18
PB17
PCK1
A17/BA1
SDRAM BA1
19
PB18
PCK2
D16
Available for external hardware, e.g. programmable clock output
20
PB19
FIQ
D17
RTC Interrupt via R35
21
PB20
IRQ0
D18
Ethernet Controller Interrupt
22
PB21
PCK1
D19
Available for external hardware, e.g. programmable clock output
23
PB22
NPCS3
D20
Available for external hardware, e.g. SPI chip select
24
PB23
PWM0
D21
USB Monitor
25
PB24
PWM1
D22
Available for external hardware, e.g. GPIO with timer/counter
26
PB25
PWM2
D23
27
PB26
TIOA2
D24
28
PB27
TIOB2
D25
29
PB28
TCLK1
D26
30
PB29
TCLK2
D27
31
PB30
NPCS2
D28
MP3 Decoder Data Select
32
PB31
PCK2
D9
MP3 Decoder Hardware Reset
33
3.3V
Regulated 3.3V Power Supply, up to 500mA are available for external hardware
34
3.3V
35
Not connected, reserved for future expansions
36
37
38
NRST
Hardware Reset, also available to reset external hardware
39
GND
Ground
40
GND
Expansion Connector K3
Pin
GPIO
Periph.
A
Periph.
B
Note
1
PC0
D0
16-Bit External Data Bus
2
PC1
D1
3
PC2
D2
4
PC3
D3
5
PC4
D4
6
PC5
D5
7
PC6
D6
8
PC7
D7
9
PC8
D8
RTS1
10
PC9
D9
DTR1
11
PC10
D10
PCK0
12
PC11
D11
PCK1
13
PC12
D12
PCK2
14
PC13
D13
15
PC14
D14
NPCS1
16
PC15
D15
NCS3/NANDCS
17
PC16
A18
NWAIT
Open Collector Bus Wait
18
PC17
A19
NANDOE
Ethernet Controller Hardware Reset
19
PC18
A20
NANDWE
MultiMedia Card Detect
20
PC19
A21/NANDALE
MultiMedia Card Write Protect Sensor
21
PC20
A22/REG/NANDCLE
NCS7
Available for external hardware, e.g. chip select for memory mapped devices
22
PC21
NWR0/NWE/CFWE
External Bus Write Strobe
23
PC22
NRD/CFOE
External Bus Read Strobe
24
PC23
CFRNW
NCS0
Available for external hardware, e.g. chip select for memory mapped devices
25
Not connected, can be used to route additional signals to external hardware
26
27
28
29
30
31
32
33
3.3V
Regulated 3.3V Power Supply, up to 500mA are available for external hardware
34
3.3V
35
JTAGSEL
Connect with pin 33 to enable boundary scan
36
ERASE
Connect with pin 34 to erase the firmware
37
Vin
Unregulated Input Voltage, 5-24V
38
SHDN
Connect with pin 40 to switch off the radio
39
GND
Ground
40
GND
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