|4||1||Select border
|-
|3||x||rowspan=4|ignoredIgnored
|-
|2||x
|''Bit''||''Value''||''Function''
|-
|7||0||rowspan=2|Gate Array function "Pen Selection"
|-
|6||0||
|-
|5||x-||not used
|-
|4||1||Select pen
|-
|3||x||rowspan=4|Pen number
|-
|2||x||
|-
|1||x||
|-
|0||x||
|-
|}