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Memory Map

The following is a memory map that was generated based on the MAME source code (.180).  This information is only as accurate as the MAME driver is.  If you see any errors, please let me know what that error is.
 
The Memory Area is related to where the information is from (CPU, Sound Board, etc..), and it may also reflect what it has in common with other hardware.
Jr. Pac-Man (bootleg, 1983)
Memory Area:jrpacmbl_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x87FF2048RAM Write, Sharedjrpacman_videoram_w, videoram
0x8800-0x8FEF2032RAM
0x8FF0-0x8FFF16RAM, Sharedspriteram
0x9000-0x901F32Device Writenamco, namco_device, pacman_sound_w
0x9020-0x902F16Write Only, Sharedspriteram2
0x90301Writejrpacman_scroll_w
0x9040-0x904F16Read PortDSW
0x0003CoinageActive High
0x00032C_1CActive High
0x00011C_1CActive High
0x00021C_2CActive High
0x0000Free_PlayActive High
0x000cLivesActive High
0x00001Active High
0x00042Active High
0x00083Active High
0x000c5Active High
0x0030Bonus_LifeActive High
0x000010000Active High
0x001015000Active High
0x002020000Active High
0x003030000Active High
0x0040OffActive High
0x0000OnActive High
0x0080CabinetActive High
0x0080UprightActive High
0x0000CocktailActive High
0x90401Writeirq_mask_w
0x90411Device Writenamco, namco_device, pacman_sound_enable_w
0x90421Writepengo_palettebank_w
0x90431Writepacman_flipscreen_w
0x90441Writejrpacman_bgpriority_w
0x90451Writejrpacman_spritebank_w
0x90461Writepengo_colortablebank_w
0x90471Writejrpacman_charbank_w
0x90701Write NOP
0x9080-0x90BF64Read PortP2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0020Start 1Active Low
0x0040Start 2Active Low
0x0080UnknownActive Low
0x90C0-0x90FF64Read PortP1
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Coin 1Active Low
0x0020Coin 2Active Low
0x0040Coin 3Active Low
0x0080UnknownActive Low
Memory Area:pengo_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x83FF1024RAM Write, Sharedpacman_videoram_w, videoram (/* video and color RAM, scratchpad RAM, sprite codes */)
0x8400-0x87FF1024RAM Write, Sharedpacman_colorram_w, colorram
0x8800-0x8FEF2032RAM, Sharedmainram
0x8FF0-0x8FFF16RAM, Sharedspriteram
0x9000-0x901F32Device Writenamco, namco_device, pacman_sound_w
0x9000-0x903F64Read PortDSW1
0x9020-0x902F16Write Only, Sharedspriteram2
0x90401Writeirq_mask_w
0x9040-0x907F64Read PortDSW0
0x90411Device Writenamco, namco_device, pacman_sound_enable_w
0x90421Writepengo_palettebank_w
0x90431Writepacman_flipscreen_w
0x9044-0x90452Writepengo_coin_counter_w
0x90461Writepengo_colortablebank_w
0x90471Writepengo_gfxbank_w
0x90701Write NOP
0x9080-0x90BF64Read PortIN1
0x90C0-0x90FF64Read PortIN0
 

ROM Map for this game

 
This is the ROM map for the game.  This should tell you what address the ROM is at, how big it is, what it's used for.   
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192jrpacpe-09.ic92CRC(2128d9b4),tiles bank 1 & 2 (Fluke: 8880)
0x2000-0x3FFF8192jrpacpe-10.ic105CRC(73477193),sprites (bank 1) & 2 (Fluke: 8F65)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096jrpacpe-05.ic8CRC(98049df4) (Fluke: F132)
0x1000-0x1FFF4096jrpacpe-01.ic7CRC(b7a5cef8) (Fluke: 772F)
0x2000-0x2FFF4096jrpacpe-06.ic6CRC(ecf39785) (Fluke: 8B08)
0x3000-0x3FFF4096jrpacpe-02.ic5CRC(c090145c) (Fluke: ED9B)
0x4000-0x4FFF4096jrpacpe-07.ic4CRC(659b9956) (Fluke: A4FA)
0x5000-0x5FFF4096jrpacpe-03.ic3CRC(0ebcfac9) (Fluke: B124)
0x6000-0x6FFF4096jrpacpe-08.ic2CRC(0624ffd6) (Fluke: D739)
0x7000-0x7FFF4096jrpacpe-04.ic1CRC(d3a8448c) (Fluke: B599)
Memory Area:namco
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256jrprom.7pCRC(a9cc86bf),waveform (Fluke: 71E8)
0x0100-0x01FF256jrprom.5sCRC(77245b66),timing - not used (Fluke: E0E5)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0020-0x011F256jrprom.9pCRC(9f6ea9d8),color lookup table (Fluke: BEB1)
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