TC1765 Datasheet, PDF (19/88 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1765
Preliminary
Table 1
Symbol
XTAL1
XTAL2
ECOUT
ECIN
CPUCLK
TEST
MODE⁸⁾
V_DDOSC
V_SSOSC
V_DD
Pin Definitions and Functions (cont’d)
Pin In Functions
Out
U18 I
T18 O
P1 O
Oscillator/PLL/Clock Generator Input/Output Pins
XTAL1 is the input to the oscillator amplifier and input to the
internal clock generator. XTAL2 is the output of the oscillator
amplifier circuit. For clocking the device from an external
source, XTAL1 is driven with the clock signal while XTAL2 is
left unconnected. For crystal oscillator operation XTAL1 and
XTAL2 are connected to the crystal with the appropriate
recommended oscillator circuitry.
EBU Clock Output³⁾
N1 –
R13 O
EBU Clock Input
The ECIN pin is used to latch the data from external
components into the EBU. This pin has to be connected to the
ECOUT pin. Additional delay elements might be used to
adapt to long delays at the address and data lines.
CPU Clock Output³⁾
General purpose clock output (can be disabled if not used). In
addition, the OCDS-2 trace output data are synchronous to
this clock.
V16 I
R18 –
Test Mode Select Input
For normal operation of the TC1765 this pin should be
connected to V_DD.
Main Oscillator Power Supply (2.5 V)⁹⁾
R17 –
J3, –
P2,
T4,
V7,
U11,
U13,
L2,
F17,
D11,
V9
Main Oscillator Ground
Core and EBU Power Supply (2.5 V)⁹⁾
Data Sheet
15
V1.2, 2002-12