TC290 Datasheet, PDF (296/476 Pages) Infineon Technologies AG – 32-Bit Single-Chip Micocontroller

TC290 / TC297 / TC298 / TC299 BB-Step
Package and Pinning DefinitionsTC297x Pin Definition and Functions:
2.3.2 Emergency Stop Function
The Emergency Stop function can be used to force GPIOs (General Purpose Inputs/Outputs) via an external input
signal (EMGSTOPA or EMGSTOPB) into a defined state:
• Input state and
• PU or High-Z depending on HWCFG[6] level latched during Porst active
Control of the Emergency Stop function:
• The Emergency Stop function can be enabled/disabled in the SCU (see chapter “SCU”, “Emergency Stop
Control”)
• The Emergency Stop input signal, EMGSTOPA (P33.8) / EMGSTOPB (P21.2) , can selected in the SCU (see
chapter “SCU”, “Emergency Stop Control”)
• On port level, each GPIO can be enabled/disabled for the Emergency Stop function via the Px_ESR (Port x
Emergency Stop) registers in the port control logic (see chapter “General Purpose I/O Ports and Peripheral I/O
Lines”, “Emergency Stop Register”).
The Emergency Stop function is available for all GPIO Ports with the following exceptions:
• Not available for P20.2 (General Purpose Input/GPI only, overlayed with Testmode)
• Not available for P40.x (analoge input ANx overlayed with GPI)
• Not available for P32.0 EVR13 SMPS mode.
• Not available for dedicated I/O without General Purpose Output function (e.g ESRx, TMS, TCK)
The Emergency Stop function can be overruled on the following GPIO Ports:
• P00.x and P02.x: Emergency Stop can be overruled by the 8-Bit Standby Controller (SBR), if implemented.
Overruling can be disabled via the control registers P00_SCR / P02_SCR (see chapter “General Purpose I/O
Ports and Peripheral I/O Lines”, P00 / P01)
• P00.x: Emergency Stop can be overruled by the VADC. Overruling can be disabled via the control register
P00_SCR (see chapter “General Purpose I/O Ports and Peripheral I/O Lines”, P00)
• P14.0 and P14.1: Emergency Stop can be overruled in the DXCPL mode (DAP over can physical layer mode).
No Overruling in the DXCM (Debug over can message) mode
• P21.6: Emergency Stop can be overruled in JTAG mode if this pin is used as TDI
• P21.7: Emergency Stop can be overruled in JTAG or Three Pin DAP mode
• P20.0: Emergency Stop can be overruled in JTAG mode if this GPIO is used as TDI
• P33.8: Emergency Stop can be overruled if this pin is used as safety output pin (SMUFSP)
2.3.3 Pull-Up/Pull-Down Reset Behavior of the Pins
Table 2-73 List of Pull-Up/Pull-Down Reset Behavior of the Pins
Pins
PORST = 0
PORST = 1
all GPIOs
Pull-up if HWCFG[6] = 1 or High-Z if HWCFG[6] = 0
TDI, TESTMODE
PORST¹⁾
TRST, TCK, TMS
ESR0
Pull-up
Pull-down with I_PORST relevant
Pull-down
The open-drain driver is used to
drive low.²⁾
Pull-down with I_PDLI relevant
Pull-up³⁾
Data Sheet
2-290
V 1.1 2015-05
TC290/TC297/TC298/TC299 BB-Step Data Sheet downloaded by saravanakumar maniyam (larsen and Toubro limited) at 08 Sep 2015 08:06