SPC564A80L7 datasheet(121/157 Pages) STMICROELECTRONICS

121 / 157 page

SPC564A74L7, SPC564A80B4, SPC564A80L7

Electrical characteristics

Doc ID 15399 Rev 9

121/157

Table 40.

Nexus debug port operating frequency

Package

Nexus Width Nexus Routing

Nexus Pin Usage

Max. Operating

Frequency

MDO[0:3]

MDO[4:11]

CAL_MDO[4:11]

LQFP176

BGA208

BGA324

Reduced port

mode(1)

Route to MDO(2)

Nexus Data Out

[0:3]

GPIO

40 MHz(3)

Full port

mode(4)

Route to MDO(2)

Nexus Data Out

[0:3]

Nexus Data Out

[4:11]

GPIO

40 MHz(5),(6)

CSP496

Reduced port

mode(1)

Route to MDO(2)

Nexus Data Out

[0:3]

GPIO

40 MHz(3)

Full port

mode(4)

Route to MDO(2)

Nexus Data Out

[0:3]

Nexus Data Out

[4:11]

GPIO

40 MHz(5),(6)

Route to

CAL_MDO(7)

Cal Nexus Data

Out [0:3]

GPIO

Cal Nexus Data

Out [4:11]

40 MHz(3)

NPC_PCR[FPM] = 0

NPC_PCR[NEXCFG] = 0

The Nexus AUX port runs up to 40 MHz. Set NPC_PCR[MCKO_DIV] to divide-by-two if the system frequency is greater

than 40 MHz.

NPC_PCR[FPM] = 1

Set the NPC_PCR[MCKO_DIV] to divide by two if the system frequency is between 40 MHz and 80 MHz inclusive. Set the

NPC_PCR[MCKO_DIV] to divide by four if the system frequency is greater than 80 MHz.

Pad restrictions limit the Maximum Operation Frequency in these configurations

NPC_PCR[NEXCFG] = 1

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