MC9S08RD32CFJE Freescale Semiconductor, MC9S08RD32CFJE Datasheet - Page 186
MC9S08RD32CFJE
Manufacturer Part Number
MC9S08RD32CFJE
Description
IC MCU 32K FLASH 8MHZ 32-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheet
1.MC9S08RE8FJE.pdf
(234 pages)
Specifications of MC9S08RD32CFJE
Core Processor
HCS08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S08RD32CFJE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Development Support
Figure 15-2
The host is asynchronous to the target so there is a 0-to-1 cycle delay from the host-generated falling edge
to where the target perceives the beginning of the bit time. Ten target BDC clock cycles later, the target
senses the bit level on the BKGD pin. Typically, the host actively drives the pseudo-open-drain BKGD pin
during host-to-target transmissions to speed up rising edges. Because the target does not drive the BKGD
pin during the host-to-target transmission period, there is no need to treat the line as an open-drain signal
during this period.
186
SYNCHRONIZATION
PERCEIVED START
(TARGET MCU)
BDC CLOCK
UNCERTAINTY
TRANSMIT 1
TRANSMIT 0
OF BIT TIME
HOST
HOST
shows an external host transmitting a logic 1 or 0 to the BKGD pin of a target HCS08 MCU.
Figure 15-2. BDC Host-to-Target Serial Bit Timing
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
TARGET SENSES BIT LEVEL
10 CYCLES
EARLIEST START
OF NEXT BIT
Freescale Semiconductor
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