User's Manual

Stollmann
E + V GmbH
BlueMod+B20
Hardware reference
Author: bg Date of Saving: 28.03.07 Ref: BlueMod+B20_HWreference_V101.doc Revision: 1.00 Page 16 of 16
PIO2/USB-Pull_Up
L
Rs
27R
Rs
27R
D+
D-
VBUS
GND
USB_DP
USB_DN
PIO4/USB_ON
BlueMod+B20
VSUP
Regulator
+3.3V
C C
Connections in bus powered mode
3.9 Serial Peripheral Interface
BlueMod+B20 uses a 16-bit-data and16-bit-address Serial Peripheral Interface
(SPI). This interface is used for configuration, firmware flash and debug purposes
only.
3.9.1 SPI Interface Cable
SPI Signal Name B20 Pin LPT Sub-D 25 Pin
MISO 30 10
MOSI 27 8
CLK 28 9
CS# 29 2
XAP_RESET 31 16
GND 2,21,34,35 18 to 25