Datasheet

Chapter 1 MC9S12E128 Device Overview (MC9S12E128DGV1)
MC9S12E128 Data Sheet, Rev. 1.07
Freescale Semiconductor 29
1.2.1 Detailed Register Map
0x0000 – 0x000F MEBI Map 1 of 3 (HCS12 Multiplexed External Bus Interface)
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0x0000 PORTA
R
Bit 7 6 5 4 3 2 1 Bit 0
W
0x0001 PORTB
R
Bit 7 6 5 4 3 2 1 Bit 0
W
0x0002 DDRA
R
Bit 7 6 5 4 3 2 1 Bit 0
W
0x0003 DDRB
R
Bit 7 6 5 4 3 2 1 Bit 0
W
0x0004 Reserved
R00000000
W
0x0005 Reserved
R00000000
W
0x0006 Reserved
R00000000
W
0x0007 Reserved
R00000000
W
0x0008 PORTE
R
Bit 7 6 5 4 3 2
Bit 1 Bit 0
W
0x0009 DDRE
R
Bit 7 6 5 4 3 Bit 2
00
W
0x000A PEAR
R
NOACCE
0
PIPOE NECLK LSTRE RDWE
00
W
0x000B MODE
R
MODC MODB MODA
0
IVIS
0
EMK EME
W
0x000C PUCR
R
PUPKE
00
PUPEE
00
PUPBE PUPAE
W
0x000D RDRIV
R
RDPK
00
RDPE
00
RDPB RDPA
W
0x000E EBICTL
R0000000
ESTR
W
0x000F Reserved
R00000000
W