Rainbow Electronics AT77SM0101BCB02VKE - Manual (Page 5)

5
AT77SM0101BCB02VKE
5391A–BIOM–09/04
The pins are used to connect the following interfaces:
• USB device: pins 10 and 12 of J2 connector
• USB host: pins 14 and 16 of J2 connector
• TWI: pins 40 and 42 of J1 connector
• JTAG: pins 32, 34, 36, 38, 40, 42 and 44 of J2 connector
• SPI: pins 21, 23, 25, 27, 29 and 31 of J1 connector
• Two serial links: RS-232, RS-485, IrDA and/or Smart Card
• Ethernet or MMC/SD card
Table 2. J2 Pin Description
Pin Description Pin Description
1 GND 2 3V3
3 PB22 4 PC9
5 PB19 6 PC8
7 PB18 8 PC7
9 PB17 10 DDP
11 PB16 12 DDM
13 PB15 14 HDPA
15 PB14 16 HDMA
17 PB13 18 PB29/IRQ0
19 PB12 20 PB28/FIQ
21 PB11 22 PB27
23 PB10 24 PB26
25 PB9 26 PB25
27 PB8 28 PB24
29 PB7 30 PB23
31 PB6 32 NRST
33 PB5 34 NTRST
35 PB4 36 TMS
37 PB3 38 TCK
39 PB2 40 TDO
41 PB1 42 TDI
43 PB0 44 JTAGSEL
45 PA31 46 PB21
47 PA30 48 PB20
49 3V3 50 GND