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PC312XDP512F0CFVR Fiches technique(PDF) 786 Page - Freescale Semiconductor, Inc

No de pièce PC312XDP512F0CFVR
Description  HCS12X Microcontrollers
PDF  1348 Pages
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Fabricant  FREESCALE [Freescale Semiconductor, Inc]
Site Internet  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

PC312XDP512F0CFVR Fiches technique(HTML) 786 Page - Freescale Semiconductor, Inc

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Chapter 21 External Bus Interface (S12XEBIV2)
MC9S12XDP512 Data Sheet, Rev. 2.21
788
Freescale Semiconductor
21.1.3
Block Diagram
Figure 21-1 is a block diagram of the XEBI with all related I/O signals.
Figure 21-1. XEBI Block Diagram
21.2
External Signal Description
The user is advised to refer to the SoC section for port configuration and location of external bus signals.
NOTE
The following external bus related signals are described in other sections:
CS2, CS1, CS0 (chip selects) — S12X_MMC section
ECLK, ECLKX2 (free-running clocks) — PIM section
TAGHI, TAGLO (tag inputs) — PIM section, S12X_DBG section
Table 21-1 outlines the pin names and gives a brief description of their function. Refer to the SoC section
and PIM section for reset states of these pins and associated pull-ups or pull-downs.
XEBI
ADDR[22:0]
DATA[15:0]
LSTRB
R/W
UDS
LDS
RE
WE
EWAIT
ACC[2:0]
IQSTAT[3:0]
IVD[15:0]



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