MC68340AG16E Freescale Semiconductor, MC68340AG16E Datasheet - Page 311

• Manufacturer Part Number: MC68340AG16E
• Description: IC MPU 32BIT 16MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340AG16E

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• No. Of I/o's: 16
• Cpu Speed: 16MHz
• No. Of Timers: 2
• Embedded Interface Type: UART
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: M683xx
• Core: CPU32
• Maximum Clock Frequency: 16 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Details

A transmitted character from the master station consists of a start bit, a programmed
number of data bits, an address/data (A/D) bit flag, and a programmed number of stop
bits. The A/D bit identifies the type of character being transmitted to the slave station. The
character is interpreted as an address character if the A/D bit is set or as a data character
if the A/D bit is cleared. The polarity of the A/D bit is selected by programming bit 2 of the
MR1. The MR1 should be programmed before enabling the transmitter and loading the
corresponding data bits into the transmit buffer.
In multidrop mode, the receiver continuously monitors the received data stream,
regardless of whether it is enabled or disabled. If the receiver is disabled, it sets the
7-16
RECEIVER
OVERRUN
NOTES:
ENABLED
RxRDYA
1. Timing shown for MR1(7) = 1
2. Timing shown for OPCR(4) = 1 and MR1(6) = 0
3. R = Read
4. C = Received Character
RxRDY
FFULL
(SR1)
(SR0)
(SR4)
RTS
OPR(0) = 1
RxD
CS
N
1
C1
STATUS DATA
Figure 7-8. Multidrop Mode Timing Diagram
R
C1
Freescale Semiconductor, Inc.
R
For More Information On This Product,
C2
MC68340 USER’S MANUAL
Go to: www.freescale.com
C3
C4
C5
LOST
C5
STATUS DATA
C2
R
C6, C7, C8 ARE LOST
R
C6
R R
RESET BY COMMAND
C3
R R
C7
STATUS DATA
MOTOROLA
C4
C8