23-1
MSM66591/ML66592 User's Manual
Chapter 23 Serial Port with FIFO (SCI5)
23
23. Serial Port with FIFO (SCI5)
The MSM66591/ML66592 have an internal Serial I/O (SCI5) Port with dedicated FIFO
that is used for serial synchronous communication with the CAN controller. SCI5
transmits and receives data in 8-bit units in synchronization with the clock specified by
SCI5 control register 0 (SCI5CON0).
Since an internal 8-stage FIFO functions as a transmit-receive buffer, consecutive
transmission or reception of a maximum of 8 bytes is possible. After data transmission
is completed, an SCI5 interrupt request is generated.
With SCI5, the shift clock for data transfer is output from pin P5_2/SCLK, transmit data
is output from pin P5_1/SDOUT, and receive data is input from pin P5_0/SDIN.
A chip select pin (P5_4/
CS
), a read and write control pin (P5_3/RWB), a WAIT pin
(P5_7/WAIT) with BUSY signal input, and an interrupt input pin (P5_5/INT2) are
provided for use with the CAN controller.
If SCI5 is to be used, set the following pins to their secondary function: P5_0/SDIN,
P5_1/SDOUT, P5_2/SCLK, P5_3/RWB, P5_4/
CS
, P5_5/INT2, and P5_7/WAIT.
23.1 SCI5 Configuration
SCI5 consists of a data buffer FIFO, an 8-bit SFDOUT register that writes to the FIFO,
an 8-bit SFDIN register that reads FIFO data, an 8-bit SFADR register that specifies the
CAN controller address to access, a shift register that performs serial transfers, 8-bit
SCI5CON0 and SCI5CON1 registers that control SCI5 operation, and a control circuit.
Figure 23-1 shows the configuration of SCI5.
Figure 23-1 SCI5 Configuration (Serial I/O with FIFO)
Internal BUS
SCI5CON0
SCI5CON1
SFDIN
Control Circuit
8-byte FIFO
SFDOUT
SFADR
Shift Register
P5_1/SDOUT pin
P5_0/SDIN pin
P5_2/SCLK pin
P5_4/
CS
pin
P5_3/RWB pin
P5_5/INT2 pin
P5_7/WAIT pin
Summary of Contents for ML66592
Page 15: ...Contents 12 ...
Page 17: ......
Page 18: ...Overview Chapter 1 1 ...
Page 19: ......
Page 30: ...Description of Pins Chapter 2 2 ...
Page 31: ......
Page 44: ...CPU Architecture Chapter 3 3 ...
Page 45: ......
Page 101: ...3 56 MSM66591 ML66592User sManual Chapter 3 CPU Architecture ...
Page 102: ...CPU Control Functions Chapter 4 4 ...
Page 103: ......
Page 111: ...4 8 MSM66591 ML66592User sManual Chapter 4 CPU Control Functions ...
Page 112: ...Memory Control Functions Chapter 5 5 ...
Page 113: ......
Page 117: ...5 4 MSM66591 ML66592User sManual Chapter 5 Memory Control Functions ...
Page 118: ...Port Functions Chapter 6 6 ...
Page 119: ......
Page 152: ...Output Pin Control Pin OE Chapter 7 7 ...
Page 153: ......
Page 155: ...7 2 MSM66591 ML66592User sManual Chapter 7 Output Pin Control Pin OE ...
Page 156: ...Clock Generation Circuit Chapter 8 8 ...
Page 157: ......
Page 160: ...Time Base Counter TBC Chapter 9 9 ...
Page 161: ......
Page 164: ...Watchdog Timer WDT Chapter 10 10 ...
Page 165: ......
Page 170: ...Flexible Timer FTM Chapter 11 11 11 ...
Page 171: ......
Page 213: ...11 42 MSM66591 ML66592User sManual Chapter 11 Flexible Timer FTM ...
Page 214: ...General Purpose 8 Bit Timer Function Chapter 12 12 ...
Page 215: ......
Page 223: ...12 8 MSM66591 ML66592User sManual Chapter 12 General Purpose 8 Bit Timer Function ...
Page 224: ...PWM Functions Chapter 13 13 ...
Page 225: ......
Page 244: ...Baud Rate Generator Functions Chapter 14 14 ...
Page 245: ......
Page 263: ...14 18 MSM66591 ML66592User sManual Chapter 14 Baud Rate Generator Functions ...
Page 264: ...Serial Port Functions Chapter 15 15 ...
Page 265: ......
Page 348: ...A D Converter Functions Chapter 16 16 ...
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Page 381: ...16 32 MSM66591 ML66592User sManual Chapter 16 A D Converter Functions ...
Page 382: ...Transition Detector Functions Chapter 17 17 ...
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Page 387: ...17 4 MSM66591 ML66592User sManual Chapter 17 Transition Detector Functions ...
Page 388: ...Peripheral Functions Chapter 18 18 ...
Page 389: ......
Page 392: ...External Interrupt Request Function Chapter 19 19 ...
Page 393: ......
Page 396: ...Interrupt Request Processing Function Chapter 20 20 ...
Page 397: ......
Page 407: ...20 10 MSM66591 ML66592User sManual Chapter 20 Interrupt Request Processing Function ...
Page 408: ...Bus Port Functions Chapter 21 21 ...
Page 409: ......
Page 413: ...21 4 MSM66591 ML66592User sManual Chapter 21 Bus Port Functions ...
Page 414: ...Expansion Port Chapter 22 22 ...
Page 415: ......
Page 420: ...Serial Port with FIFO SCI5 Chapter 23 23 ...
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Page 431: ...23 10 MSM66591 ML66592User sManual Chapter 23 Serial Port with FIFO SCI5 ...
Page 432: ...RAM Monitor Function Chapter 24 24 ...
Page 433: ......
Page 441: ...24 8 MSM66591 ML66592User sManual Chapter 24 RAM Monitor Function ...
Page 442: ...25 Electrical Characteristics Chapter 25 ...
Page 443: ......
Page 458: ...Package Dimensions Chapter 26 26 ...
Page 459: ......
Page 461: ...26 2 MSM66591 ML66592User sManual Chapter 26 Package Dimensions ...
Page 462: ...Revision History Chapter 27 27 ...
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Page 465: ...27 2 MSM66591 ML66592User sManual Chapter 27 Revision History ...