AN1212 Freescale Semiconductor / Motorola, AN1212 Datasheet - Page 30

• Manufacturer Part Number: AN1212
• Description: J1850 Multiplex Bus Communication Using the MC68HC705C8 and the SC371016 J1850 Communications Interface (JCI)
• Manufacturer: Freescale Semiconductor / Motorola

AN1212/D
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J1850 Multiplex Bus Communication Using the MC68HC705C8
and the SC371016 J1850 Communications Interface (JCI)
*** Timer Interrupt Periods ***
vdelay
pdelay
*** ACR/AMR Initialization Equates ***
acrbyte
amrbyte
*** Functional Message I.D.s ***
id1
id2
id3
id4
**********************************************************************
*****
**********************************************************************
*** Data Transfer Storage ***
command
status
data
cmdtemp
statemp
datatemp
*** Transmit Message Buffer ***
txcount
txbuf
txcntrl
*** Received Message Buffer Pointer Table ***
msg1
msg2
msg3
msg4
*** Received Message Buffers ***
buff1
buff2
buff3
buff4
Freescale Semiconductor, Inc.
For More Information On This Product,
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Go to: www.freescale.com
$04
$02
%00100110 ;Init value for ACR
%11010001 ;Init value for AMR
$00
$20
$04
$24
ram
$1
$1
$1
$1
$1
$1
$1
$b
$1
$1
$1
$1
$1
$8
$8
$8
$8
HC05 RAM Storage Assignments
;Counter advance for VPW Tx status routine
;Counter advance for PWM Tx status routine
;Command Byte Storage
;Status Byte Storage
;Data Byte Storage
;Temporary Command Byte Storage
;Temporary Status Byte Storage
;Temporary Data Byte Storage
;Host Transmit Message Byte Counter
;Host Transmit Message Buffer
;Host Transmit Message Control Byte
;Pointer to RAM holding message w/id1
;Pointer to RAM holding message w/id2
;Pointer to RAM holding message w/id3
;Pointer to RAM holding message w/id4
;RAM holding last received message w/id1
;RAM holding last received message w/id2
;RAM holding last received message w/id3
;RAM holding last received message w/id4
MOTOROLA
*****