Changes
/* Summary */
|''Bit''||''Value''||''Function''
|-
|7||0||rowspan=2|Gate Array function
|-
|6||1||
|-
|5||x-||not used
|-
|4||x||Interrupt generation control
*0 Lower rom area enable
|-
|1||x||rowspan=2|Mode slection
|-
|0||x||
|-
|}
