AN3190 datasheet(14/56 Pages) STMICROELECTRONICS

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Pad compatibility

AN3190

14/56

Doc ID 17333 Rev 2

2.3

Non-compatible pads

SPC56EL60 is more demanding in terms of power consumption than is SPC560Px; thus

certain pads which are functional on SPC560Px are used as power supply pads on

SPC56EL60. From a functional point of view the compatibility of these pads between

SPC560Px and SPC56EL60 is broken.

Pad 123, although not a power supply pad, is another pad where the functional compatibility

is broken. On SPC56EL60 this pad is dedicated to the JCOMP functionality(b).

During the reset phase, these SPC560Px pads are in high impedance status. This means

that if these pads are not configured as output and are not used by the application a 3.3 V or

1.2 V voltage can be applied to them without risk. As a result, a certain level of compatibility

between SPC56EL60 and SPC560Px can be achieved in these pads.

Table 4 and Table 5 list the non-compatible pads.

117 (A.117)

eTimer 0 - ETC[5]

Compatibility on this functionality can be achieved on pad 24 and 82.

DSPI 2 - CS 3

Compatibility on this functionality can be achieved on pad 82.

119 (A.119)

eTimer 1 - ETC[5]

Compatibility can be achieved using pad 14, 129 and 144.

121 (A.121)

DSPI 0 - CS 1

SPC560Px supports this function on pad 16, but compatibility cannot be

achieved.

133 (A.133)

FlexPWM 0 - A[1]

Compatibility can be achieved on pad 15 and 124.

eTimer 0 - ETC[2]

Compatibility on this function can be achieved on pad 84.

139 (A.139)

DSPI 0 - CS6

SPC560Px supports this function on pad 130, but compatibility cannot

be achieved.

Table 3.

Partially compatible pads: SPC56EL60 functionalities not supported on SPC560Px

Pad No.

Functionality not

supported on SPC560Px

Comment

The JCOMP signal (dedicated input pin) is used to reset the JTAGC independent from the state of the device.

Table 4.

Non-compatible pads: Functional on SPC560Px – power supply on SPC56EL60

Pad No.

SPC56EL60

power supply

SPC560Px

function

Comment

16 (A.16)

VDD_VH_REG

GPIO[35] - C[3]

SPC56EL60 does not support this digital IO.

EIRQ[21]

SPC56EL60 supports these functions on pad 81,

but compatibility on these functions cannot be

achieved.

DSPI 0 - CS 1

eTimer - ETC[4]

LINFlex 1 - TXD

Compatibility on this functionality can be achieved

on pad 115.

39 (A.39)

VDD_LV_COR0_4

GPIO[65] - E[1]

SPC56EL60 does not support this digital IO.

ADC 0 - AN[4]

This analog channel is supported by SPC56EL60

on pad 46.

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