EM78M612
Universal Serial Bus Microcontroller Series
7 Function Block Diagram
OSCI
OSCO
VDD
V3.3
D+
D-
R2
(PC)
Built-in
RC
Oscillator
Timing
Control
3.3V
Regulator
Transceiver
ROM
Stack1
Stack2
Stack3
Stack4
Stack5
EEPROM
USB
Device
Controller
Instruction
register
Prescaler
Prescaler
R3
(Status)
WDT
TCC
Reset &
Sleep &
Wake up
Control
R AM
WDT
Timer
R1
(TCC)
Interrupt
Control
R4
(RSR)
ALU
Instruction
Decoder
ACC
DATA & CONTROL BUS
PWM
ADC
P60/PDA
P61/AD
P62/AD
P83/AD
P64/AD
P65/AD
P66/AD
P67/AD
P70/AD
P71/AD
P72/AD
P73/AD
P74/AD
P75/AD
P76/AD
P77/AD
P50/D+
P51/D-
Pattern
Detect
Application
I/O
Port 6
I/O
Port 7
I/O
Port 5
Figure 7 EM78M612 Series Function Block Diagram
8 Function Description
The EM78M612 memory is organized into 4 spaces, namely; User Program Memory in
2048*13 bits ROM space, Data Memory in 112 bytes SRAM space, and USB Application
FIFOs (for EndPoint0 and EndPoint1). Furthermore, several registers are used for special
purposes.
This specification may change without further notice.
2004/4/28 V1.1
7
EMC [ ELAN MICROELECTRONICS CORP ]
