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HC705E5GRS/D Datasheet(PDF) 78 Page - NXP Semiconductors

Part # HC705E5GRS/D
Description  General Release Specification
PDF  148 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

HC705E5GRS/D Datasheet(HTML) 78 Page - NXP Semiconductors

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Motorola Bus (M Bus) Interface
General Release Specification
MC68HC705E5 — Rev. 1.0
Motorola Bus (M Bus) Interface
11.6 M-Bus Registers
Five different registers are used in the M-bus interface. The internal
configuration of these registers is discussed in the following paragraphs.
NOTE:
The register addresses show only the low-order address bits (for
example ABL3–ABL0). The registers can be placed anywhere in the
device memory map by generating an appropriate module select signal
in the map logic.
A block diagram of the M-bus system is shown in Figure 11-3.
11.6.1 M-Bus Address Register
Bit 1–Bit 7
Each of these bits contains its own specific slave address. This
register is cleared upon reset.
Address:
$0018
Bit 7
654321
Bit 0
Read:
MAD7
MAD6
MAD5
MAD4
MAD3
MAD2
MAD1
Write:
Reset:
0000000
—
= Unimplemented
Figure 11-3. M-Bus Address Register (MADR)
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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