XC2797X Datasheet, PDF (52/147 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance

XC2797X
XC2000 Family Derivatives / High Line
General Device Information
Table 5
Pin Definitions and Functions (cont’d)
Pin Symbol
Ctrl. Type Function
17 V_DDIM
-
PS/M Digital Core Supply Voltage for Domain M
Decouple with a ceramic capacitor, see Data
Sheet for details.
16,
66,
111,
155
V_DDI1
22 V_DDPA
2,
44,
46,
88,
90,
132,
134,
176
V_DDPB
-
PS/1 Digital Core Supply Voltage for Domain 1
Decouple with a ceramic capacitor, see Data
Sheet for details.
All V_DDI1 pins must be connected to each other.
-
PS/A Digital Pad Supply Voltage for Domain A
Connect decoupling capacitors to adjacent
V_DDP/V_SS pin pairs as close as possible to the pins.
Note: The A/D_Converters and ports P5, P6, P14
and P15 are fed from supply voltage V_DDPA.
-
PS/B Digital Pad Supply Voltage for Domain B
Connect decoupling capacitors to adjacent
V_DDP/V_SS pin pairs as close as possible to the pins.
Note: The on-chip voltage regulators and all ports
except P5, P6, P14 and P15 are fed from
supply voltage V_DDPB.
1, V_SS
45,
89,
133
-
PS/-- Digital Ground
All V_SS pins must be connected to the ground-line
or ground-plane.
Note: Also the exposed pad is connected
internally to V_SS. To improve the EMC
behavior, it is recommended to connect the
exposed pad to the board ground.
For thermal aspects, please refer to the
Data Sheet. Board layout examples are
given in an application note.
1) To generate the reference clock output for bus timing measurement, f_SYS must be selected as source for
EXTCLK and P2.8 must be selected as output pin. Also the high-speed clock pad must be enabled. This
configuration is referred to as reference clock output signal CLKOUT.
Data Sheet
52
V1.2, 2010-09