s908ey16g2vfar Freescale Semiconductor, Inc, s908ey16g2vfar Datasheet - Page 287

• Manufacturer Part Number: s908ey16g2vfar
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Appendix B
Differences Between 908EY16A and 908EY16
B.1 Introduction
The 908EY16A is a new revision of the existing 908EY16. The 908EY16A was designed using the latest
HC08 design technology. Emphasis was placed on maintaining compatibility with the existing 908EY16
during the design stage. While this was largely realized, there are a few differences introduced by
customer requested improvements and by the use of the latest, enhanced modules. The purpose of this
appendix is to point out the differences between the two versions of the part.
B.2 Configuration
A CONFIG3 register has been added to allow for new configuration features of the ESCI, SPI, and ICG.
This replaces a reserved register location at address $0009.
B.2.1 Enhanced Serial Communications Interface Module (ESCI)
Enhanced transmitter functions are available for the local interconnect network (LIN). The LINT bit has
been added to ESCI Baud Rate register. (The bit location was previously reserved.)
The transmit and receive pins can be remapped to the PTA2 and PTA3 pins. This is selected in the
CONFIG3 register. The reset state of these bits maps the ESCI transmit and receive to the same pins as
on the 908EY16.
Freescale Semiconductor
908EY16A:
908EY16:
Address:
908EY16A:
Reset:
908EY16:
Address:
Reset:
$0009
Bit 7
NA
R
R
0
$0016
LINT
Bit 7
R
R
0
Figure B-1. Configuration Register 3 (CONFIG3)
MC68HC908EY16A • MC68HC908EY8A Data Sheet, Rev. 1
Figure B-2. ESCI Baud Rate Register (SCBR)
= Reserved
RNGSEL
= Reserved
R
6
1
LINR
LINR
6
0
ESCISRE
SCP1
SCP1
R
5
0
5
0
SPISRE
SCP0
SCP0
R
4
0
4
0
MCLKSRE
R
R
3
0
R
3
0
PORTSRE
SCR2
SCR2
2
0
R
2
0
SCR1
SCR1
ESCISEL
1
0
R
1
0
SCR0
SCR0
Bit 0
SPISEL
0
Bit 0
R
0
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