SIO1007 datasheet(66/108 Pages) MICROCHIP

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SIO1007

DS00002020A-page 66

 2005 - 2015 Microchip Technology Inc.

18.4.18

CR11

CR11 can only be accessed in the configuration state and after the CSR has been initialized to 11H. CR11 is a test con-

trol register and all bits must be treated as Reserved.

18.4.19

CR12 - CR13

CR12 and CR13 are the SIO1007 Configuration Ports base address registers (Table 18-15 and Table 18-16). These

registers are used to relocate the Configuration Ports base address beyond the power-up defaults determined by the

SYSOPT[1:0] pin strap options.

CR12 contains the Configuration Ports base address bits A[7:0]. CR13 contains the Configuration Ports base address

bits A[15:8].

The Configuration Ports base address is relocatable on even-byte boundaries; i.e., A0 = ‘0’.

At power-up the Configuration Ports base address is determined by the SYSOPT[1:0] pin strap options. To relocate the

Configuration Ports base address after power-up, first write the lower address bits of the new base address to CR12

and then write the upper address bits to CR13.

Test 12

Test 13

Test 14

Test 15

Note:

All test modes are reserved for Microchip use. Activating test mode registers may produce undesired

results.

TABLE 18-14: CR11

Test 3

Type: R/W

Default: 0X00 ON VCC POR

BIT NO.

BIT NAME

DESCRIPTION

Test 16

RESERVED FOR MICROCHIP USE

Test 17

Test 18

Test 19

Test 20

Test 21

Test 22

Test 23

Note:

Writing CR13 changes the Configuration Ports base address.

TABLE 18-13: CR10 (CONTINUED)

Test 2

Type: R/W

Default: 0X00 ON VCC POR

BIT NO.

BIT NAME

DESCRIPTION

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