XC164CS-32F_06 Datasheet, PDF (13/81 Pages) Infineon Technologies AG – 16-Bit Single-Chip Microcontroller with C166SV2 Core

XC164-32
Derivatives
General Device Information
Table 2
Pin Definitions and Functions (cont’d)
Sym- Pin Input Function
bol
Num. Outp.
TRST 36
I
Test-System Reset Input. A high level at this pin activates
the XC164CS’s debug system. For normal system operation,
pin TRST should be held low.
P3
IO
Port 3 is a 14-bit bidirectional I/O port. Each pin can be
programmed for input (output driver in high-impedance
state) or output (configurable as push/pull or open drain
driver). The input threshold of Port 3 is selectable (standard
or special).
The following Port 3 pins also serve for alternate functions:
P3.1 39
O
T6OUT GPT2 Timer T6 Toggle Latch Output,
I/O RxD1
ASC1 Data Input (Async.) or Inp./Outp. (Sync.),
I
EX1IN Fast External Interrupt 1 Input (alternate pin A),
I
TCK
Debug System: JTAG Clock Input
P3.2 40
I
CAPIN GPT2 Register CAPREL Capture Input,
I
TDI
Debug System: JTAG Data In
P3.3 41
O
T3OUT GPT1 Timer T3 Toggle Latch Output,
O
TDO
Debug System: JTAG Data Out
P3.4 42
I
T3EUD GPT1 Timer T3 External Up/Down Control Input,
I
TMS
Debug System: JTAG Test Mode Selection
P3.5 43
I
T4IN
GPT1 Timer T4 Count/Gate/Reload/Capture In.,
O
TxD1
ASC0 Clock/Data Output (Async./Sync.),
O
BRKOUT Debug System: Break Out
P3.6 44
I
T3IN
GPT1 Timer T3 Count/Gate Input
P3.7 45
I
T2IN
GPT1 Timer T2 Count/Gate/Reload/Capture In.,
I
BRKIN Debug System: Break In
P3.8 46
I/O
MRST0 SSC0 Master-Receive/Slave-Transmit In/Out.
P3.9 47
I/O
MTSR0 SSC0 Master-Transmit/Slave-Receive Out/In.
P3.10 48
O
TxD0
ASC0 Clock/Data Output (Async./Sync.),
I
EX2IN Fast External Interrupt 2 Input (alternate pin B)
P3.11 49
I/O
RxD0
ASC0 Data Input (Async.) or Inp./Outp. (Sync.),
I
EX2IN Fast External Interrupt 2 Input (alternate pin A)
P3.12 50
O
BHE
External Memory High Byte Enable Signal,
O
WRH
External Memory High Byte Write Strobe,
I
EX3IN Fast External Interrupt 3 Input (alternate pin B)
P3.13 51
I/O
SCLK0 SSC0 Master Clock Output / Slave Clock Input,
I
EX3IN Fast External Interrupt 3 Input (alternate pin A)
P3.15 52
O
CLKOUT System Clock Output (= CPU Clock),
O
FOUT
Programmable Frequency Output
Data Sheet
11
V1.1, 2006-08