11 of 47
May 25, 2004
IDT 79RC32355
DMAP[2]
O
Low Drive
Active DMA channel code
. DMA debug enable is selected during reset using the boot configuration and overrides the
selection of the Primary and Alternate functions.
Primary function: General Purpose I/O, GPIOP[9].
1st Alternate function: U1SINP.
DMAP[3]
O
Low Drive
Active DMA channel code
. DMA debug enable is selected during reset using the boot configuration and overrides the
selection of the Primary and Alternate functions.
Primary function: General Purpose I/O, GPIOP[8].
1st Alternate function: U1SOUTP.
UART
U0SOUTP
I
STI
UART channel 0 serial transmit.
Primary function: General Purpose I/O, GPIOP[0]. At reset, this pin defaults to primary function GPIOP[0].
U0SINP
I
STI
UART channel 0 serial receive.
Primary function: General Purpose I/O, GPIOP[1]. At reset, this pin defaults to primary function GPIOP[1].
U0RIN
I
STI
UART channel 0 ring indicator.
Primary function: General Purpose I/O, GPIOP[2]. At reset, this pin defaults to primary function GPIOP[2] if JTAG reset
enable is not selected during reset using the boot configuration.
2nd Alternate function: JTAG boundary scan reset, JTAG_TRST_N.
U0DCRN
I
STI
UART channel 0 data carrier detect.
Primary function: General Purpose I/O, GPIOP[3]. At reset, this pin defaults to primary function GPIOP[3].
U0DTRN
O
Low Drive
UART channel 0 data terminal ready.
Primary function: General Purpose I/O, GPIOP[4]. At reset, this pin defaults to primary function GPIOP[4] if CPU/DMA Sta-
tus Mode enable is not selected during reset using the boot configuration.
2nd Alternate function: CPU or DMA transaction indicator, CPUP.
U0DSRN
I
STI
UART channel 0 data set ready.
Primary function: General Purpose I/O, GPIOP[5]. At reset, this pin defaults to primary function GPIOP[5].
U0RTSN
O
Low Drive
UART channel 0 request to send.
Primary function: General Purpose I/O, GPIOP[6]. At reset, this pin defaults to primary function GPIOP[6].
U0CTSN
I
STI
UART channel 0 clear to send.
Primary function: General Purpose I/O, GPIOP[7]. At reset, this pin defaults to primary function GPIOP[7].
U0SOUTP
O
Low Drive
UART channel 1 serial transmit.
Primary function: General Purpose I/O, GPIOP[8]. At reset, this pin defaults to primary function GPIOP[8] if DMA Debug
enable is not selected during reset using the boot configuration.
2nd Alternate function: DMA channel, DMAP[3].
U1SINP
I
STI
UART channel 1 serial receive.
Primary function: General Purpose I/O, GPIOP[9]. At reset, this pin defaults to primary function GPIOP[9] if DMA Debug
enable is not selected during reset using the boot configuration.
2nd Alternate function: DMA channel, DMAP[2].
U1DTRN
O
Low Drive
UART channel 1 data terminal ready.
Primary function: General Purpose I/O, GPIOP[10]. At reset, this pin defaults to primary function GPIOP[10] if ICE Interface
enable is not selected during reset using the boot configuration.
Alternate function: PC trace status bit 0, EJTAG_PCST[0].
U1DSRN
I
STI
UART channel 1 data set ready.
Primary function: General Purpose I/O, GPIOP[11]. At reset, this pin defaults to primary function GPIOP[11] if ICE Interface
enable is not selected during reset using the boot configuration.
2nd Alternate function: PC trace status bit 1, EJTAG_PCST[1].
U1RTSN
O
Low Drive
UART channel 1 request to send.
Primary function: General Purpose I/O, GPIOP[12]. At reset, this pin defaults to primary function GPIOP[12] if ICE Interface
enable is not selected during reset using the boot configuration.
2nd Alternate function: PC trace status bit 2, EJTAG_PCST[2].
Name
Type I/O Type
Description
Table 1 Pin Descriptions (Part 7 of 8)