ATMEGA8 I/O求助

只看该作者 · 2010-7-1 23:14

找来一个程序，反汇编后来学习一下，可让人看不明白如下的定义对应芯片的那些引脚，且ATMEGA8只有32个引脚，可定义有33个，请高手指点一下，多谢！
p04 = 0x04
p05 = 0x05
p06 = 0x06
p07 = 0x07
p11 = 0x11
p12 = 0x12
p13 = 0x13
p14 = 0x14
p15 = 0x15
p16 = 0x16
p17 = 0x17
p18 = 0x18
p21 = 0x21
p22 = 0x22
p23 = 0x23
p24 = 0x24
p25 = 0x25
p26 = 0x26
p27 = 0x27
p28 = 0x28
p29 = 0x29
p2A = 0x2A
p2B = 0x2B
p2C = 0x2C
p2D = 0x2D
p2E = 0x2E
p2F = 0x2F
p35 = 0x35
p39 = 0x39
p3B = 0x3B
p3D = 0x3D
p3E = 0x3E
p3F = 0x3F