Datasheet

Random-Access Memory (RAM)
MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor 41
2.4 Random-Access Memory (RAM)
The following table shows the RAM size and address range:
The location of the stack RAM is programmable. The 16-bit stack pointer allows the stack to be anywhere
in the 64k-byte memory space.
IF8
$FFEC TIM2 Channel 1 Vector (High)
$FFED TIM2 Channel 1 Vector (Low)
IF7
$FFEE TIM2 Channel 0 Vector (High)
$FFEF TIM2 Channel 0 Vector (Low)
IF6
$FFF0 TIM1 Overflow Vector (High)
$FFF1 TIM1 Overflow Vector (Low)
IF5
$FFF2 TIM1 Channel 1 Vector (High)
$FFF3 TIM1 Channel 1 Vector (Low)
IF4
$FFF4 TIM1 Channel 0 Vector (High)
$FFF5 TIM1 Channel 0 Vector (Low)
IF3
$FFF6 PLL Vector (High)
$FFF7 PLL Vector (Low)
IF2
$FFF8
IRQ2 Vector (High)
$FFF9
IRQ2 Vector (Low)
IF1
$FFFA
IRQ1 Vector (High)
$FFFB
IRQ1 Vector (Low)
—
$FFFC SWI Vector (High)
$FFFD SWI Vector (Low)
—
$FFFE Reset Vector (High)
Highest $FFFF Reset Vector (Low)
Device RAM Size (Bytes) Memory Address Range
MC68HC908AP64
2,048 $0060–$085F
MC68HC908AP32
MC68HC908AP16
1,024 $0060–$045F
MC68HC908AP8
Table 2-1. Vector Addresses (Continued)
Priority INT Flag Address Vector