MC9S12XDT256CAA Freescale Semiconductor, MC9S12XDT256CAA Datasheet - Page 661

IC MCU 256K FLASH 80-QFP

MC9S12XDT256CAA

Manufacturer Part Number
MC9S12XDT256CAA
Description
IC MCU 256K FLASH 80-QFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet

Specifications of MC9S12XDT256CAA

Core Processor
HCS12X
Core Size
16-Bit
Speed
80MHz
Connectivity
CAN, EBI/EMI, I²C, IrDA, LIN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
59
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Processor Series
S12XD
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
16 KB
Interface Type
CAN/I2C/SCI/SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
59
Number Of Timers
12
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
EVB9S12XDP512E
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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18.3.2.3
Read: Anytime
Write: Anytime
The global page index register is used to construct a 23 bit address in the global map format. It is only used
when the CPU is executing a global instruction (GLDAA, GLDAB, GLDD, GLDS, GLDX,
GLDY,GSTAA, GSTAB, GSTD, GSTS, GSTX, GSTY) (see CPU Block Guide). The generated global
address is the result of concatenation of the CPU local address [15:0] with the GPAGE register [22:16] (see
Figure
Freescale Semiconductor
Address: 0x0010
GP[6:0]
Reset
Field
6–0
W
R
18-7).
Bit22
LDX
MOVB
GLDAA
Global Page Index Bits 6–0 — These page index bits are used to select which of the 128 64-kilobyte pages is
to be accessed.
Global Page Index Register (GPAGE)
0
0
7
XGATE write access to this register during an CPU access which makes use
of this register could lead to unexpected results.
Example 18-1. This example demonstrates usage of the GPAGE register
GPAGE Register [6:0]
#0x5000
#0x14, GPAGE
X
= Unimplemented or Reserved
GP6
0
6
Figure 18-6. Global Page Index Register (GPAGE)
Figure 18-7. GPAGE Address Mapping
Table 18-8. GPAGE Field Descriptions
MC9S12XDP512 Data Sheet, Rev. 2.21
GP5
0
5
;Set GPAGE offset to the value of 0x5000
;Initialize GPAGE register with the value of 0x14
;Load Accu A from the global address 0x14_5000
Global Address [22:0]
Bit16
CAUTION
Bit15
GP4
0
4
Description
GP3
0
3
CPU Address [15:0]
Chapter 18 Memory Mapping Control (S12XMMCV3)
GP2
0
2
GP1
0
1
Bit 0
GP0
0
0
661

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