Calibration software compatibility and configuration

RM0345

22/38

Doc ID 024080 Rev 3

9

Calibration software compatibility and configuration

The

calibration board uses standard production silicon packaged in the CSP (Chip Scale

Package). Therefore, all production silicon features exist and are identical on the calibration

board.

The required initialization code may be as simple as the configuration of the EBI and its

related pins in the SIU, and it could be integrated into standard application software.

The calibration bus and the SIU can also be configured by an external tool connected to the

debug port, removing the need of specific configuration functions in the application software.

9.1

Calibration bus sw configuration

A 16-bit calibration bus is implemented on the

board. In multiplexed mode the CAL_DATA

signals will output the address signals during the address phase by using an onboard

external latch controlled by the CAL_TS signal. The CAL_ALE may be used to drive an

external latch when an asynchronous memory is in use.

There are few steps to configure the SPC563M64xx Calibration Bus

–

SIU PCR (Pad Configuration Register)

–

SIU ECCR (External Clock Control Register)

–

External Bus Interface (EBI)

9.1.1

Cal Bus PCR Settings

The SIU PCR registers used to configure the calibration bus are shown in theTable 11 The

table also shows the recommended PA field setting.

Table 11.

Calibration bus signals configuration

signal name

SPC563M64xx

mcu signal name

Function

P

A

G

(1)

PCR

PA

field

(2)

PCR

(3)

Notes

Address/Data Bus (44)

C_DATA[0:15]

CAL_DATA[0:15]

Calibration

data bus

--

341

C_ADDR[12:15]

CAL_ADDR[12:15]

Calibration

address bus

--

340

C_ADDR[16:31]

CAL_ADDR[16:31]

Calibration

address bus

--

345

C_CS[0]

CAL_CS[0]

Calibration

chip select

--

336

C_CS[1]

Not Connected

C_CS[2]

CAL_CS[2]

Calibration

chip select

P1

338

CAL_ADDR[10]

Calibration

address bus

A0