MPC8313CZQADDC Freescale Semiconductor, MPC8313CZQADDC Datasheet - Page 1123

• Manufacturer Part Number: MPC8313CZQADDC
• Description: Microprocessors - MPU 8313 REV2.2 PB NO EN EXT
• Manufacturer: Freescale Semiconductor

Specifications of MPC8313CZQADDC

• Processor Series: MPC8313
• 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

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