Motorola EVB555, Быстрая справка, Страница: 34 / 49

MOTOROLA EVB555
A-36 Quick Reference
The following connections are not on the MAPI 400 interface.
A.1.2 PRU connector (CO604) assignment
MPC pin Signal name Description corresponding to the data sheet
U20 XTAL Connection to an external crystal for the internal oscillator circuitry.
T20 EXTAL
Connection to an external crystal for the internal oscillator.
Must be grounded, if unused.
R19 XFC External filter capacity: for an external capacitor filter for the PLL circuitry.
R20 VDDSYN Power supply of the PLL circuitry
T19 VSSSYN Power supply of the PLL circuitry
B7 VRH High reference voltage for QADC_A and QADC_B.
A7 VRL Low reference voltage for QADC_A and QADC_B.
T18 KAPWR Keep alive power: 3V supply for the SRAM.
Pin Signal name Description corresponding to the data sheet
1 B_PIO0
B_PIO0 - B_PIO31: second group of 32 General Purpose I/O lines
operated by the Port Replacement Unit
2 A_PIO0
A_PIO0 - A_PIO31: first group of 32 General Purpose I/O lines
operated by the Port Replacement Unit
3 B_PIO1 See B_PIO0
4 A_PIO1 See A_PIO0
5 B_PIO2 See B_PIO0
6 A_PIO2 See A_PIO0
7 B_PIO3 See B_PIO0
8 A_PIO3 See A_PIO0
9 B_PIO4 See B_PIO0
10 A_PIO4 See A_PIO0
11 B_PIO5 See B_PIO0
12 A_PIO5 See A_PIO0
13 B_PIO6 See B_PIO0
14 A_PIO6 See A_PIO0
17 B_PIO7 See B_PIO0
18 A_PIO7 See A_PIO0
19 B_PIO8 See B_PIO0
20 A_PIO8 See A_PIO0
21 B_PIO9 See B_PIO0
22 A_PIO9 See A_PIO0
23 B_PIO10 See B_PIO0
24 A_PIO10 See A_PIO0
25 B_PIO11 See B_PIO0
26 A_PIO11 See A_PIO0
29 B_PIO12 See B_PIO0
30 A_PIO12 See A_PIO0
31 B_PIO13 See B_PIO0
32 A_PIO13 See A_PIO0
33 B_PIO14 See B_PIO0
34 A_PIO14 See A_PIO0
35 B_PIO15 See B_PIO0
36 A_PIO15 See A_PIO0
37 B_PIO16 See B_PIO0
38 A_PIO16 See A_PIO0
39 B_PIO17 See B_PIO0