20 digital i/o?

Hello:

REquire your suppport because in the specs said 20 digital i/o but i only identify D0 to D7 in J6 connector

Wich one is D8, D9, D10... in J5 connector (BS0, BS1, BS2, CS#...)?

How to change the status or wich is the spec of the J5 connector?

appreciate your suppport.

I don't have any experience with the 101 but maybe this will be helpful:

/*
 * Arduino 101
 *  Board pin      |     GPIO     | Label
 * ----------------+--------------+-------
 *   0             |  GPIO_SS[9]  | "RX0"
 *   1             |  GPIO_SS[8]  | "TX0"
 *   2             |  GPIO[18]    | ""
 *   3             |  GPIO_SS[10] | "PWM0"
 *   4             |  GPIO[19]    | ""
 *   5             |  GPIO_SS[11] | "PWM1"
 *   6             |  GPIO_SS[12] | "PWM2"
 *   7             |  GPIO[20]    | ""
 *   8             |  GPIO[16]    | ""
 *   9             |  GPIO_SS[13] | "PWM3"
 *  10             |  GPIO[11]    | ""
 *  11             |  GPIO[10]    | "MOSI"
 *  12             |  GPIO[9]     | "MISO"
 *  13             |  GPIO[8]     | "SCK"
 *  14             |  GPIO_SS[2]  | "A0"
 *  15             |  GPIO_SS[3]  | "A1"
 *  16             |  GPIO_SS[4]  | "A2"
 *  17             |  GPIO_SS[5]  | "A3"
 *  18             |  GPIO_SS[6]  | "A4"
 *  19             |  GPIO_SS[1]  | "A5"
 *  20             |  GPIO_SS[0]  | "ATN"
*/