UPD77110GC NEC [NEC], UPD77110GC Datasheet - Page 16

• Manufacturer Part Number: UPD77110GC
• Description: 16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSORS
• Manufacturer: NEC [NEC]

• Host interface
• I/O ports
16
HA1
HA0
HCS
HRD
HWR
HRE
HWE
HD0 - HD7
P0
P1
P2
P3
Pin Name
Pin Name
Remark The pins marked “3S” under the heading “I/O” go into a high-impedance state when the host interface is
Note Only the PD77110. The PD77111 and 77112 have no multiplexed pins.
not being accessed.
72
71
68
69
70
66
67
63 - 56
55
54
53
52
100-pin
TQFP
100-pin
TQFP
58
57
54
55
56
52
53
49 - 42
39
38
37
36
Pin No.
80-pin
TQFP
Pin No.
80-pin
TQFP
B9
C8
D7
D8
C9
E6
D9
E7, F7,
F9, F8,
G8, G9,
G7, H9
J8
H7
F6
J7
80-pin
FBGA
80-pin
FBGA
Data Sheet U12801EJ4V0DS00
Output
Output
Input
Input
Input
Input
Input
(3S)
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Specifies the register to be accessed by HD7
through HD0.
•
•
Specifies the register to be accessed by HD7
through HD0.
•
•
Chip select input
Host read input
Host write input
Host read enable output
Host write enable output
8-bit host data bus
General-purpose I/O port
1: Accesses the host interface status
0: Accesses the host transmit data register
1: Accesses bits 15 through 8 of HST, HDT
0: Accesses bits 7 through 0 of HST, HDT
register (HST).
(HDT (out)) when read (HRD = 0), and
host receive data register (HDT (in))
when written (HWR = 0).
(in), and HDT (out).
(in), and HDT (out).
Function
Function
PD77110, 77111, 77112
PLL0
PLL1
Shared by:
Shared by:
Note
Note