MC9S08DZ48AMLF Freescale Semiconductor, MC9S08DZ48AMLF Datasheet - Page 301
![MCU 8BIT 48K FLASH EE 48-LQFP](/photos/37/62/376254/lqfp-48_sml.jpg)
MC9S08DZ48AMLF
Manufacturer Part Number
MC9S08DZ48AMLF
Description
MCU 8BIT 48K FLASH EE 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheets
1.DEMO9S08DZ60.pdf
(416 pages)
2.EVB9S08DZ60.pdf
(4 pages)
3.MC9S08DZ48AMLF.pdf
(458 pages)
Specifications of MC9S08DZ48AMLF
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, LIN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
48KB (48K x 8)
Program Memory Type
FLASH
Eeprom Size
1.5K x 8
Ram Size
3K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 16x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Processor Series
S08DZ
Core
HCS08
Data Bus Width
8 bit
Data Ram Size
3 KB
Interface Type
CAN, I2C, SCI, SPI
Number Of Programmable I/os
40
Number Of Timers
2
Operating Supply Voltage
5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWS08
Development Tools By Supplier
DEMO9S08DZ60
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 16 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S08DZ48AMLF
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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12.5.5.5
In initialization mode, any on-going transmission or reception is immediately aborted and synchronization
to the CAN bus is lost, potentially causing CAN protocol violations. To protect the CAN bus system from
fatal consequences of violations, the MSCAN immediately drives the TXCAN pin into a recessive state.
In initialization mode, the MSCAN is stopped. However, interface registers remain accessible. This mode
is used to reset the CANCTL0, CANRFLG, CANRIER, CANTFLG, CANTIER, CANTARQ,
CANTAAK, and CANTBSEL registers to their default values. In addition, the MSCAN enables the
configuration of the CANBTR0, CANBTR1 bit timing registers; CANIDAC; and the CANIDAR,
CANIDMR message filters. See
description of the initialization mode.
Due to independent clock domains within the MSCAN, INITRQ must be synchronized to all domains by
using a special handshake mechanism. This handshake causes additional synchronization delay (see
Section Figure 12-46., “Initialization Request/Acknowledge
If there is no message transfer ongoing on the CAN bus, the minimum delay will be two additional bus
clocks and three additional CAN clocks. When all parts of the MSCAN are in initialization mode, the
INITAK flag is set. The application software must use INITAK as a handshake indication for the request
(INITRQ) to go into initialization mode.
Freescale Semiconductor
MSCAN Initialization Mode
The user is responsible for ensuring that the MSCAN is not active when
initialization mode is entered. The recommended procedure is to bring the
MSCAN into sleep mode (SLPRQ = 1 and SLPAK = 1) before setting the
INITRQ bit in the CANCTL0 register. Otherwise, the abort of an on-going
message can cause an error condition and can impact other CAN bus
devices.
The CPU cannot clear INITRQ before initialization mode (INITRQ = 1 and
INITAK = 1) is active.
Bus Clock Domain
CPU
Init Request
INITAK
Flag
Figure 12-46. Initialization Request/Acknowledge Cycle
Section 12.3.1, “MSCAN Control Register 0
MC9S08DZ128 Series Data Sheet, Rev. 1
INITRQ
sync.
INITAK
NOTE
NOTE
SYNC
SYNC
Chapter 12 Freescale’s Controller Area Network (S08MSCANV1)
Cycle”).
CAN Clock Domain
sync.
INITRQ
INITAK
(CANCTL0),” for a detailed
INIT
Flag
301
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