Service manual

Circuit Description
3-4
R2 43 nRD O ROM Bus Read_n B4TR_TC
T1 44 nROMCS0 O ROM Bank0 Select_n B4TR_TC
P4 45 nROMCS3 / nIOCS3 /
GPO1
O ROM Bank3 Select_n / IO Bank3
Select_n / GPO[1]
B4TR_TC
R3 46 nWR O ROM Bus Write_n B4TR_TC
T2 47 nROMCS1 O ROM Bank1 Select_n B4TR_TC
U1 48 ADDR12 O ROM Bus Addr[12] B8TR_TC
T3 49 ADDR10 O ROM Bus Addr[10] B8TR_TC
U2 50 ADDR13 O ROM Bus Addr[13] B8TR_TC
V1 51 ADDR15 O ROM Bus Addr[15] B8TR_TC
T4 52 ADDR11 O ROM Bus Addr[11] B8TR_TC
U3 53 ADDR14 O ROM Bus Addr[14] B8TR_TC
V2 54 ADDR16 O ROM Bus Addr[16] B8TR_TC
W1 55 ADDR19 I/O ROM Bus Addr[19] BD8TRP_TC
V3 56 ADDR17 I/O ROM Bus Addr[17] BD8TRP_TC
W2 57 ADDR20 I/O ROM Bus Addr[20] BD8TRP_TC
Y1 58 nIOCS0 O IO Bank0 Select_n B4TR_TC
W3 59 ADDR21 I/O ROM Bus Addr[21] BD8TRP_TC
Y2 60 nIOCS1 O IO Bank1 Select_n B4TR_TC
W4 61 ADDR22 I/O ROM Bus Addr[22] BD8TRP_TC
V4 62 ADDR18 I/O ROM Bus Addr[18] BD8TRP_TC
U5 63 ADDR7 O ROM Bus Addr[7] B8TR_TC
Y3 64 VDD_CORE O VDD for CORE (1.8V) -
Y4 65 nIOCS2 / nDACK0 /
GPO2
O IO Bank2 Select_n / DMA IO Bank0
ACK_n / GPO[2]
B4TR_TC
V5 66 ADDR1 O ROM Bus Addr[1] B8TR_TC
W5 67 ADDR8 O ROM Bus Addr[8] B8TR_TC
Y5 68 ADDR9 O ROM Bus Addr[9] B8TR_TC
V6 69 ADDR4 O ROM Bus Addr[4] B8TR_TC
U7 70 ADDR6 O ROM Bus Addr[6] B8TR_TC
W6 71 ADDR2 O ROM Bus Addr[2] B8TR_TC
Y6 72 ADDR3 O ROM Bus Addr[3] B8TR_TC
V7 73 ADDR5 O ROM Bus Addr[5] B8TR_TC
W7 74 VDD_ARM - VDD for ARM Hard Macro(1.8V) -
Y7 75 VDD_CORE - VDD for CORE (1.8V) -
V8 76 EINT0 / TnRST I Ext. Interrupt0 / TAP Controller
Reset_n
SCHMITT_FT
W8 77 EINT1 / TCK I Ext. Interrupt1 / TAP Controller
Clock
SCHMITT_FT
Y8 78 EINT2 / nRXD2 / TMS I Ext. Interrupt2 / UART RX DATA[2] /
TAP Controller Mode Select
SCHMITT_FT
U9 79 EINT3 / nTXD2 / GPO9 I/O Ext. Interrupt3 / UART TX Data[2] /
GPO[9]
BD4STRP_FT
V9 80 nRxD0 I UART RX Data[0] SCHMITT_FT
W9 81 nRxD1 / GPI17 / TDI I UART RX Data[1] / GPI[17] / TAP
Controller Data In
SCHMITT_FT
Y9 82 nTxD0 O UART TX Data[0] B4TR_TC
W10 83 TESTMODE I TESTMODE (Nomal : 0) SCHMITT_TC
Ball No Pin No Pin Name I/O Description PAD