CCU3000 Datasheet, PDF (73/77 Pages) Micronas – Central Control Unit

CCCCUU33000000-I,, CCCCUU 330000001--II
CCU 3001, CCU 3001-I
Pin No.
68–pin
PLCC
64–pin
SDIP
51
33
Con-
nection
X
52
32
X
53
31
X
54
30
X
55
29
X
56
28
X
57
27
X
58
26
X
59
–
X
60
25
X
61
24
X
62
23
X
63
22
X
64
21
X
65
20
X
66
19
X
67
18
X
68
17
X
I:
Input
O:
Output
I/O (O)
I/O (O)
I/O (O)
I/O (O)
I/O (O)
I/O
I/O /I
I/O
I/O
I/O /I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Pin Name
P73 (Memory Bank
Address 3)
P74 (Memory Bank
Address 4)
P75 (Memory Bank
Address 5)
P76 (R/W)
P77 (Power-Down
Control)
P80
P81/INT
P82
P83
P87/INT
P60
P61
P62
P63
P64
P65
P66
P67
8.7.1. DC Parameters I²C Bus Master Interface
The input and output parameters of the I²C bus interface
(Clock and Data) are designed according to the INTER-
METALL specification for Port and IM bus pins (the inter-
face can also be operated as IM bus interface). The dif-
ferences are:
Short Description
Port 7, Bit 3 (Memory Bank Address 3)
Port 7, Bit 4 (Memory Bank Address 4)
Port 7, Bit 5 (Memory Bank Address 5)
Port 7, Bit 6 (CPU read/write signal)
Port 7, Bit 7 (Power-Down Control)
Port 8, Bit 0
Port 8, Bit 1 / Interrupt input
Port 8, Bit 2
Port 8, Bit 3
Port 8, Bit 7/Interrupt input
Port 6, Bit 0
Port 6, Bit 1
Port 6, Bit 2
Port 6, Bit 3
Port 6, Bit 4
Port 6, Bit 5
Port 6, Bit 6
Port 6, Bit 7
Symbol
U_IL
U_IH
U_OL
Meaning
Input Low Voltage
Input High Voltage
Output Low Voltage
INTERMETALL
max. 1 V
min. 2.8 V
0.4 V / 2 mA
I²C Specification
max. 1.5 V
min. 3 V
0.4 V / 3 mA
The INTERMETALL parameters are equivalent to soft-
ware I²C bus solutions using Port-lines for the bus. In ap-
plications with series resistors in the clock or data line
these differences may become important.
MICRONAS INTERMETALL
73