MC68HC908JB8JP Freescale Semiconductor, MC68HC908JB8JP Datasheet - Page 161
MC68HC908JB8JP
Manufacturer Part Number
MC68HC908JB8JP
Description
IC MCU FLASH 8BIT 8K 20-DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908JB8JDWE.pdf
(286 pages)
Specifications of MC68HC908JB8JP
Core Processor
HC08
Core Size
8-Bit
Speed
3MHz
Connectivity
USB
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
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9.9.1.3 Transmit Endpoint 1
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
For an IN transaction directed at endpoint 1, the USB module will
generate an interrupt by setting the TXD1F in the UIR1 register. The
conditions necessary for the interrupt to occur are shown in
Figure
TRANSMIT ENDPOINT READY TO TRANSFER?
(TX1E = 1) AND (TXD1F = 0) AND (UE1TR = 0)
TRANSMIT ENDPOINT NOT STALLED
TRANSMIT ENDPOINT ENABLED?
TIMEOUT CONDITION OCCURS?
BY FIRMWARE (STALL1 = 1)?
RECEIVED FOR ENDPOINT 1
Figure 9-32. IN Token Data Flow for Transmit Endpoint 1
INTERRUPT GENERATED
USB MODULE ENABLED?
DATA PID SET BY T1SEQ
ACK RECEIVED AND NO
INTERRUPT ENABLED?
VALID TRANSACTION
TRANSMIT ENDPOINT
9-32.
VALID IN TOKEN
SET TXD1F TO 1
Universal Serial Bus Module (USB)
(ENABLE = 1)
(USBEN = 1)
(TXD1IE = 1)
SEND DATA
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
FROM USB FUNCTION
FROM USB FUNCTION
FROM USB FUNCTION
Universal Serial Bus Module (USB)
NO RESPONSE
NO RESPONSE
NO RESPONSE
HANDSHAKE
HANDSHAKE
SEND STALL
SEND NAK
USB Interrupts
Technical Data
NO INTERRUPT
161
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