MPC8313EZQADDC Freescale Semiconductor, MPC8313EZQADDC Datasheet - Page 1123
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MPC8313EZQADDC
Manufacturer Part Number
MPC8313EZQADDC
Description
Microprocessors - MPU 8313 REV2.2 PB W/ENC
Manufacturer
Freescale Semiconductor
Datasheet
1.MPC8313CZQADDC.pdf
(1214 pages)
Specifications of MPC8313EZQADDC
Processor Series
MPC8313E
Core
e300
Data Bus Width
16 bit
Maximum Clock Frequency
133 MHz
Program Memory Size
16 KB
Data Ram Size
16 KB
Interface Type
I2C
Mounting Style
SMD/SMT
Package / Case
PBGA
Number Of Programmable I/os
32
Number Of Timers
4
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18.3.1.10 MODEM Status Registers (UMSR1 and UMSR2)
The UMSRs, shown in
set for the corresponding UART.
Table 18-17
Freescale Semiconductor
Bits
Bits
0–2
4–6
6
7
3
7
Name
Name
DCTS Delta clear to send
CTS
OE
DR
Offset: 0x0_4506, 0x0_4606
—
—
Reset
describes UMSR fields.
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
W
R
Overrun error
0 Cleared when ULSR is read
1 Before URBR was read, it was overwritten with a new character. The old character is lost. In FIFO mode,
Data ready
0 Cleared when URBR is read or when all of the data in the receiver FIFO is read.
1 A character was received in the URBR or the receiver FIFO.
Reserved, should be cleared
Clear to send. Represents the inverted value of the CTS input pin from the external peripheral device.
0 Corresponding CTS n is negated.
1 Corresponding CTS n is asserted. The MODEM or peripheral device is ready for data transfers.
Reserved, should be cleared
0 No change on the corresponding CTS n signal since the last read of UMSR[CTS].
1 CTS n changed since the last read of UMSR[CTS]. Causes an interrupt if UIER[EMSI] is set to detect this
the receiver FIFO is full (regardless of the receiver FIFO trigger level setting) and a new character has been
received into the internal receiver shift register. The old character was overwritten by the new character.
Data in the receiver FIFO was not overwritten.
condition.
0
Figure
Figure 18-12. Modem Status Register (UMSR1 and UMSR2)
Table 18-16. ULSR Field Descriptions (continued)
—
18-12, track the status of the MODEM (or external peripheral device) CTS,
Table 18-17. UMSR Field Descriptions
2
CTS
3
All zeros
Description
Description
4
—
Access: User read-only
6
DCTS
7
DUART
18-15
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