mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 510

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mc9s12e256

Manufacturer Part Number
mc9s12e256
Description
Hcs12 Microcontrollers 16-bit Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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Chapter 18 Multiplexed External Bus Interface (MEBIV3)
510
CPU pipe info
IRQ interrupt
XIRQ interrupt
BDM tag info
Addr[19:0]
Data[15:0]
(Control)
Control signal(s)
Data signal (unidirectional)
Data signal (bidirectional)
Data bus (unidirectional)
Data bus (bidirectional)
REGS
mode
Figure 18-1. MEBI Block Diagram
MC9S12E256 Data Sheet, Rev. 1.08
ECLK CTL
PIPE CTL
TAG CTL
IRQ CTL
BUS
EXT
CTL
I/F
ADDR
ADDR
DATA
ADDR
DATA
BKGD
PK[7:0]/ECS/XCS/X[19:14]
PA[7:0]/A[15:8]/
D[15:8]/D[7:0]
PB[7:0]/A[7:0]/
D[7:0]
PE[7:2]/NOACC/
IPIPE1/MODB/CLKTO
IPIPE0/MODA/
ECLK/
LSTRB/TAGLO
R/W
PE1/IRQ
PE0/XIRQ
BKGD/MODC/TAGHI
Freescale Semiconductor

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