MC9S12B128_05 Datasheet, PDF (27/132 Pages) Motorola, Inc – Covers also preliminary MC9S12B64 using MC9S12B128 die

1.5 System Memory Map
Device User Guide —9S12B128DGV1/D V01.13
Table 1-1 and Figure 1-2 show the device memory map of the MC9S12B128 after reset. The 1K
EEPROM is mapped twice in a 2K address space. Note that after reset the bottom 1k of the EEPROM
($0000 - $03FF) are hidden by the register space, and the 1K $0400 - $07FF is hidden by the RAM.
Table 1-1 Device Memory Map
Address
Module
Size
(Bytes)
$0000 - $000F HCS12 Multiplexed External Bus Interface
16
$0010 - $0014 HCS12 Module Mapping Control
5
$0015 - $0016 HCS12 Interrupt
2
$0017
HCS12 Module Mapping Control
1
$0018
Reserved
1
$0019
Voltage Regulator (VREG)
1
$001A - $001B Device ID register (PARTID)
2
$001C - $001D HCS12 Module Mapping Control
2
$001E
HCS12 Multiplexed External Bus Interface
1
$001F
HCS12 Interrupt
1
$0020 - $0027 Reserved
8
$0028 - $002F HCS12 Breakpoint
8
$0030 - $0031 HCS12 Module Mapping Control
2
$0032 - $0033 HCS12 Multiplexed External Bus Interface
2
$0034 - $003F Clock and Reset Generator (PLL, RTI, COP)
12
$0040 - $006F Standard Timer Module16-bit 8-channels (TIM)
48
$0070 - $007F Reserved
16
$0080 - $00AF Analog to Digital Converter 10-bit 16 channels (ATD)
48
$00B0 - $00C7 Reserved
24
$00C8 - $00CF Serial Communications Interface 0 (SCI0)
8
$00D0 - $00D7 Serial Communications Interface 1 (SCI1)
8
$00D8 - $00DF Serial Peripheral Interface (SPI0)
8
$00E0 - $00E7 Inter IC Bus (IIC)
8
$00E8 - $00FF Reserved
24
$0100- $010F Flash Control Register
16
$0110 - $011B EEPROM Control Register
12
$011C - $013F Reserved
36
$0140 - $017F Motorola Scalable Can (CAN0)
64
$0180 - $01FF Reserved
128
$0200 - $0227 PWM (Pulse Width Modulator 8 Bit 8 Channel)
40
$0228 - $023F Reserved
24
$0240 - $027F Port Integration Module (PIM)
64
$0280 - $03FF Reserved
384
$0000 - $07FF
EEPROM array 1k Array mapped twice in the
address space
2048
$0000 - $0FFF RAM array
4096
$0000 - $3FFF Fixed Flash EEPROM array
16384
27