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Mapping of I/O Signals
DS1103 Hardware Installation and Configuration March 2004
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Slave DSP PWM Signal Measurement (PWM2D)
• TTL input voltage range
SCAP1 * DS1103SL_DSP_PWM2D Ch 1 See Slave DSP PWM
Measurement (PWM2D) in
the DS1103 RTLib Reference
Ch 1 P2 77 P2B 30 CP31 2
SCAP2 * Ch 2 Ch 2 P2 78 P2A 30 CP31 21
SCAP3 * Ch 3 Ch 3 P2 79 P2B 14 CP31 3
SCAP4 * Ch 4 Ch 4 P2 80 P2A 14 CP31 22
Slave DSP Square-Wave Signal Measurement (F2D)
• TTL input voltage range
SCAP1 * DS1103SL_DSP_F2D Ch 1 See Square Wave Signal
Measurement (F2D) in the
DS1103 RTLib Reference
Ch 1 P2 77 P2B 30 CP31 2
SCAP2 * Ch 2 Ch 2 P2 78 P2A 30 CP31 21
SCAP3 * Ch 3 Ch 3 P2 79 P2B 14 CP31 3
SCAP4 * Ch 4 Ch 4 P2 80 P2A 14 CP31 22
Slave DSP Serial Peripheral Interface (SPI)
• TTL voltage range
• Output current range: ±13 mA
• SSOMI: SPI slave out, master in
• SSIMO: SPI slave in, master out
• SSTE: SPI slave transmit enable
• SSCLK: SPI clock
SSOMI – See Slave DSP Serial
Peripheral Interface in the
DS1103 RTLib Reference
P2 88 P2A 48 CP31 34
SSIMO – P2 87 P2B 48 CP31 16
SSTE – P2 86 P2A 15 CP31 35
SCLK – P2 85 P2B 15 CP31 17
Slave DSP Serial Communication Interface (SCI) (RS232 mode)
• RS232 voltage range
• SRXD (receive), STXD (transmit)
SRXD – See Slave DSP Serial
Communication Interface in
the DS1103 RTLib Reference
P3 15 P3B 36 CP41 2
STXD – P3 13 P3B 3 CP41 3
Slave DSP Serial Communication Interface (SCI) (RS422 mode)
• RS422 voltage range
•SRXD, S
RXD (receive and inverted signal), STXD, STXD (transmit and inverted signal)
SRXD – See Slave DSP Serial
Communication Interface in
the DS1103 RTLib Reference
P3 15 P3B 36 CP43 3
S
RXD – P3 16 P3A 36 CP43 4
STXD – P3 13 P3B 3 CP43 2
S
TXD – P3 14 P3A 3 CP43 1
Signal
Channel/Bit Numbers of Related RTI Blocks/RTLib Functions I/O Pin on …
Related RTI Block(s)
Ch/Bit
(RTI)
Related RTLib Functions
Ch/Bit
(RTLib)
DS1103
Sub-D
Conn.
CP/CLP