UPD77111 NEC, UPD77111 Datasheet - Page 3

• Manufacturer Part Number: UPD77111
• Description: 16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSORS
• Manufacturer: NEC

External memory
Peripheral units
Wait
controller
Host I/O
I/O #1
I/O #2
Serial
Serial
Port
I/O
IE
Notes 1. The WAKEUP pin is multiplexed with the INT4 pin. With the
INT1 - INT4
X memory
data
addressing
unit
Interrupt
control
2. These pins are provided only on the
Data memory unit
activated or deactivated by mask option. With the
Note 1
RESET
Loop control
stack
X memory
CPU control
WAKEUP
Program
control unit
Main bus
Note 1
Y memory
data
addressing
unit
PC stack
CLKOUT
PD77110. The PLL0 and PLL1 pins are multiplexed with the P2 and P3 pins.
CLKIN
PLL
Instruction
memory
Y memory
PLL0 - PLL2
PD77110, this function is always valid.
X bus
Y bus
Note 2
PD77111 and 77112, the function of the WAKEUP pin can be
16
16 + 40
MPY
40
R0 - R7
Operation unit
ALU (40)
BSFT