MC68HC812A4 Datasheet, PDF (33/342 Pages) Motorola, Inc – 16-bit device composed of standard on-chip peripheral modules connected by an intermodule bus. Modules include

General Description
Signal Descriptions
1.6 Signal Descriptions
NOTE: A line over a signal name indicates an active low signal. For example,
RESET is active high and RESET is active low.
The MC68HC812A4 is available in a 112-lead low-profile quad flat pack
(LQFP). The pin assignments are shown in Figure 1-2. Most pins
perform two or more functions, as described in Table 1-2. Individual
ports are cross referenced in Table 1-3 and Table 1-4.
V_RH 85
V_RL 86
PAD0/AN0 87
PAD1/AN1 88
PAD2/AN2 89
PAD3/AN3 90
PAD4/AN4 91
PAD5/AN5 92
PAD6/AN6 93
PAD7/AN7/V_STBY 94
V_DDA 95
V_SSA 96
PS0/RxD0 97
PS1/TxD0 98
PS2/RxD1 99
PS3/TxD1 100
PS4/SDI/MISO 101
PS5/SDO/MOSI 102
PS6/SCK 103
PS7/SS 104
PT0/IOC0 105
PT1/IOC1 106
PT2/IOC2 107
PT3/IOC3 108
PT4/IOC4 109
PT5/IOC5 110
PT6/IOC6 111
PT7/IOC7/PAI 112
MC68HC812A4
112-LEAD LQFP
56 ADDR4/PB4
55 ADDR3/PB3
54 ADDR2/PB2
53 ADDR1/PB1
52 ADDR0/PB0
51 ARST/PE7
50 MODB/IPIPE1/PE6
49 MODA/IPIPE0/PE5
48 ECLK/PE4
47 XTAL
46 EXTAL
45 V_SSPLL
44 XFC
43 V_DDPLL
42 V_DDX
41 V_SSX
40 RESET
39 LSTRB/TAGLO/PE3
38 R/W/PE2
37 IRQ/V_PP/PE1
36 XIRQ/PE0
35 DATA15/PC7
34 DATA14/PC6
33 DATA13/PC5
32 DATA12/PC4
31 DATA11/PC3
30 DATA10/PC2
29 DATA9/PC1
Advance Information
MOTOROLA
Figure 1-2. Pin Assignments
General Description
MC68HC812A4 — Rev. 3.0
33