UPD30121 NEC [NEC], UPD30121 Datasheet - Page 6

• Manufacturer Part Number: UPD30121
• Description: VR4121TM 64-/32-BIT MICROPROCESSOR
• Manufacturer: NEC [NEC]

INTERNAL BLOCK DIAGRAM AND EXAMPLE OF CONNECTION OF EXTERNAL BLOCKS
CPU CORE INTERNAL BLOCK DIAGRAM
6
Address/data (o)
Address/data (i)
Internal clock
PC card
Control (o)
ROM/SROM/flash
Control (i)
LCD panel
480
LCD module
EDO DRAM/
PD16661
memory
SDRAM
240
PCMCIA
/buffer
Virtual address bus
Internal data
bus
32.768 kHz 18.432 MHz
V
interface
R
OSB
4121
Bus
V
R
131/168 MHz
4120 CPU core
Data Sheet U14691EJ1V0DS00
BCU
OSB
(8 Kbytes)
cache
Data
PLL
(16 Kbytes)
DMAAU
Instruction
generator
CMU
HSP
RTC
DSU
PMU
DCU
ICU
cache
Clock
CODEC
48 MHz
FIR
CP0
TLB
LED
GIU
KIU
AIU
PIU
SIU
D/A
A/D
AFE
Touch panel
CPU
RS-232C
driver
driver
IR
PD30121