2001 Mapper pinout

2001: 48-pin 0.5mm pitch TQFP

                D4 <> /01 o 25\ ?? Gnd                  
               D3 <> /02     26\ ?? Gnd                 
              D2 <> /03       27\ ?? Gnd                
             D1 <> /04         28\ ?? Gnd               
            D0 <> /05           29\ -> Microwire SK     
          Gnd -- /06             30\ -- Vcc             
          A0 -> /07          /|   31\ <- Microwire DO   
         A1 -> /08          / |/   32\ -> Microwire DI  
       Vcc -- /09             /     33\ -> Microwire CS 
       A2 -> /10          /\      \  34\ -- nc          
      A3 -> /11           \/      L\  35\ -> ROM A22    
CPU A19 -> /12          /\      \  L\  36\ -> ROM A17   
CPU A18 -> \13          \/     \/\     37/ -> ROM A16   
 CPU A17 -> \14       \       \ \/    38/ -> ROM A20    
  CPU A16 -> \15       \     \_\     39/ -> ROM A21     
       Vcc -- \16          |\ \     40/ -- Gnd          
     /Reset ?> \17         |_\     41/ -> ROM A19       
        /MBC <- \18      \        42/ -> ROM A18        
         M/IO -> \19    \/\      43/ -> ROM /CS         
           /RD -> \20  \ \/     44/ -- Vcc              
            /WR -> \21  \      45/ -> SRAM /CS          
            /SEL -> \22       46/ <> D7                 
              CLK -> \23     47/ <> D6                  
               Gnd -- \24 O 48/ <> D5

Note the orientation of the text: "Bandai 2001" when viewed upright specifies pin 1 is bottom face, leftmost.