XC68HC705F32 Motorola, XC68HC705F32 Datasheet - Page 39

• Manufacturer Part Number: XC68HC705F32
• Description: MICROCONTROLLER
• Manufacturer: Motorola

3.2
The user RAM consists of 920 bytes of memory, from $0068 to $03FF. This is shared with a
64 byte stack area. The stack begins at $00FF, and may extend down to $00C0.
Note:
3.3
The user ROM occupies 32512 bytes of memory, from $8000 to $FEFF. In addition, there are 16
bytes of user vectors, from $FFF0 to $FFFF. The Bootloader ROM is located from $FF00 to $FFEF.
Note:
MC68HC05F32
CPI control status (CPICSR)
A/D status/control (ADSCR)
SCI control 1 (SCCR1)
SCI control 2 (SCCR2)
System options (SOR)
SCI baud rate (BAUD)
SPI data I/O (SPDAT)
A/D data (ADDATA)
SCI status (SCSR)
SPI status (SPSR)
SCI data (SCDAT)
Register Name
Using the stack area for data storage or temporary work locations requires care to
prevent the data from being overwritten due to stacking from an interrupt or subroutine
call.
For compatibility, unused bits (shaded) should always be cleared, when writing to them.
RAM
ROM
Address bit 7
$004D
$004E
$0047
$004A TDRE
$004B
$0046
$0048
$0049
$004C
$004F COCO ADRC ADON
$0045
MEMORY AND REGISTERS
Table 3-1 Register outline
TCLR
SPIF WCOL
LVIF
TIE
R8
0
TCIE
CPIF
LVIE
bit 6
TC
T8
0
RDRF IDLE
LVION
SCP1 SCP0 RCKB SCR2 SCR1 SCR0 0000 0uuu
bit 5
RIE
0
0
0
MODF
CPIE
SC
ILIE
bit 4
0
M
WAKE
CH3
OR
IRQ
bit 3
0
TE
0
CH2
KEYMUX KEYCLR
NF
RE
bit 2
0
0
0
CH1
RFQ1 RFQ0 0000 0000
RWU
FE
0
bit 1
0
CH0
PUEN 0000 0000
SBK
0
0
bit 0
0
u = undefined
MOTOROLA
0000 0000
1100 0000
0000 0000
0000 0000
uu00 0000
undefined
undefined
undefined
on reset
State
3-5
3