SPC563M60X datasheet(23/128 Pages) STMICROELECTRONICS

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DocID14642 Rev 12

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SPC563M64x, SPC563M60x

Overview

127



3 modes of operation

–

Bypass mode with PLL off

–

Bypass mode with PLL running (default mode out of reset)

–

PLL normal mode



Each of the three modes may be run with a crystal oscillator or an external clock

reference



Programmable frequency modulation

–

Modulation enabled/disabled through software

–

Triangle wave modulation up to 100 kHz modulation frequency

–

Programmable modulation depth (0% to 2% modulation depth)

–

Programmable modulation frequency dependent on reference frequency



Lock detect circuitry reports when the PLL has achieved frequency lock and

continuously monitors lock status to report loss of lock conditions



Clock Quality Module

–

detects the quality of the crystal clock and cause interrupt request or system reset

if error is detected

–

detects the quality of the PLL output clock. If an error is detected, causes a system

reset or switches the system clock to the crystal clock and causes an interrupt

request



Programmable interrupt request or system reset on loss of lock

2.3.6

Calibration EBI

The Calibration EBI controls data transfer across the crossbar switch to/from memories or

peripherals attached to the calibration tool connector in the calibration address space. The

Calibration EBI is only available in the calibration tool. The Calibration EBI includes a

memory controller that generates interface signals to support a variety of external

memories. The Calibration EBI memory controller supports legacy flash, SRAM, and

asynchronous memories. In addition, the calibration EBI supports up to three regions via

chip selects (two chip selects are multiplexed with two address bits), along with

programmed region-specific attributes. The calibration EBI supports the following features:



22-bit address bus (two most significant signals multiplexed with two chip selects)



16-bit data bus



Multiplexed mode with addresses and data signals present on the data lines

Note:

The calibration EBI must be configured in multiplexed mode when the extended Nexus trace

is used on the calibration tool. This is because Nexus signals and address lines of the

calibration bus share the same balls in the calibration package.



Memory controller with support for various memory types:

–

Asynchronous/legacy flash and SRAM



Bus monitor

–

User selectable

–

Programmable timeout period (with 8 external bus clock resolution)



Configurable wait states (via chip selects)



3 chip-select (Cal_CS[0], Cal_CS[2:3]) signals (Multiplexed with 2 most significant

address signals)

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