User's Manual

BlueMod+S/AI
www.stollmann.de Page 23 of 52
4.2 Pin Description
4.2.1 General Pin Description
Type: PU - pull-up; PD – pull-down; PWR – Power; I – Input; O – Output; I/O – bidir.; OD – open drain; PP – push/pull;
RF: RadioFreq; I-DIS – Input Buffer Disconnected
Pin Name
Signal
Type
Act
Function
Alternate Function
E-6
VSUP1
PWR
+3,0V nom.
F-6
VSUP2
PWR
+3,0V nom
C-1
not connected
none
A-7, E-7, F-7,
B-[5,6,7,8],
C-[5,6,7,8],
D-8, E-8, F-8
GND PWR Ground
A-8
ANT
RF
(4)
reserved
reserved
B-1
EXT-RES#
I-PU
L
User Reset
A-6
XL-IN/SLCK
I/O
(3,5)
32,768kHz Slow Clock / XTAL
AIN1
F-4
UART-TXD
O-PP
IUR Data OUT
(6)
D-2
UART-RXD
I-PU
IUR Data IN
(6)
D-7
UART-RTS#
O-PU
(1)
L
Flow Control/IUC
F-3
UART-CTS#
I-PD
L
Flow Control/IUC
(6)
B-4
IUR-OUT#
O-PP
L
UICP Control
D-5
IUR-IN#
I-PD
L
UICP Control
D-3
GPIO[0]
I/O
(3,5)
GPIO
(3)
I2C-SCL, AIN7, AREF1
B-2
GPIO[1]
I/O
(3,5)
GPIO
(3)
I2C-SDA, AIN6
D-1
GPIO[2]
I/O
(3,5)
GPIO
(3)
SPI-MOSI
E-4
GPIO[3]
I/O
(3,5)
GPIO
(3)
D-4
GPIO[4]
I/O
(3,5)
GPIO
(3)
F-2
GPIO[5]
I/O
(3,5)
GPIO
(3)
SPI-MISO, AREF0
C-4
GPIO[6]
I/O
(3,5)
GPIO
(3)
C-3
GPIO[7]
I/O
(3,5)
GPIO
(3)
E-2
GPIO[8]
I/O
(3,5)
GPIO
(3)
SPI-SCK, AIN2
A-3
not connected
none
A-1
GPIO[10]
I/O
(3,5)
GPIO
(3)
A-4
not connected
none
A-2
GPIO[9]
I/O
(3,5)
GPIO
(3)
F-1
TESTMODE#
I-PU
L
Testmode Enable
(6)
AIN3
E-1
BOOT0
I-PD
reserved
(6)
AIN4
E-3
SWDIO
I/O-PU
serial wire
D-6
SWCLK
I-PD
serial wire
C-2
GPIO[13]
I/O
(3,5)
GPIO
(3)
B-3
GPIO[11]
I/O
(3,5)
GPIO
(3)
AIN5
A-5
XL-OUT
I/O
(3,5)
GPIO
(3)
/ ext. XTAL 32,768kHz
AIN0
F-5
GPIO[14]
I/O
(3,5)
GPIO
(3)
E-5
GPIO[12]
I/O
(3,5)
GPIO
(3)
Notes:
(1)
a discrete resistor is used
(3)
function depends on firmware
(4)
DNU: Do Not Use, Do Not Connect
(5)
GPIO pin. These pins may be programmed as analog-in, i-disconnected, i-float, i-pu, i-pd, o-pp (output push/pull),
o-od (output open drain), o-os (output open source) or some alternate function; refer to [1], [2]
(6)
signal must be accessible for homologation purposes. Refer to 3.10 Test Mode Enable
Table 5: General Pin Assignment