Renesas Single-Chip Microcomputer M34519T-MCU Spécifications Page 19

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Products: V850E/IG4-H, IH4-H, ME2
V850E2/ME3, MN4, ML4
Compliant with Universal Serial Bus Specication
Support of 12 Mbps (full speed) transfer
Many endpoint congurations
Products: V850E/MA3, IA3, IA4, Dx3, Sx3-H
V850ES/SG1, Sx2, Sx2-H, Sx3, IK1
Instructions of address to be modied inserted to replace
DBTRAP instruction (JMP r0 instruction in case of V850
CPU), branching to 0060H (0000H in case of V850 CPU)
Program modication following switch to mask ROM
possible
Modied addresses: 4 points, 8 points*
* V850E/DJ3, Sx3-H
* JMP r0 instruction in case of V850 CPU
USB function 0 DMA
channel select
register (UF0CS)
USB function 0 buffer
control register (UF0BC)
UFDRQn
DMAAKn
TCn
USBSP2B
USBSP4B
INTUSB0B
INTUSB1B
INTUSB2B
INTRSUM
f
USB
(48 MHz)
Remark n = 0 to 3
Selector
UDM
UDP
USB
I/O buffer
Control transfer: Endpoint0R (64 bytes)/Endpoint0W (64 bytes)
Bulk transfer 1: Endpoint1 (64 bytes × 2)/Endpoint2 (64 bytes × 2)
Bulk transfer 2: Endpoint3 (64 bytes × 2)/Endpoint4 (64 bytes × 2)
Interrupt transfer1/2: Endpoint7 (8 bytes)/Endpoint8 (8 bytes)
Endpoints
SIE
RSUM_OUT
USB SSCG
(Spread spectrum frequency synthesizer clock generator)
ROM correction Explanation of ROM correction operation
Download
modication
program
Correction
address enable
setting information
ROM correction
request ag = 0?
Yes
No
Read modication
program to RAM
Correction address
setting
ROM correction enable
Replace DBTRAP
instruction*
Main routine
Normal ow
ROM correction ow
Internal ROM
External ROM,
EEPROM, etc.
Internal RAM
Return to
internal ROM
Modication
program execution
RESET
Jump to
modication program
ROM correction
request ag clear
Correction address = XXXX
ROM correction
enable ag = 1
Next processing...
Correction point
Initialization
Modication
program download
Comparator
Output trigger
control circuit
DBTRAP instruction
*
generation block
Internal ROM
Instruction
replacement part
Instruction data bus
ROM correction
address register
Instruction address bus
Products: V850E/ME2, Dx3, Sx3-H, V850ES/Hx3, Fx3
V850E2/ME3
EMI peak noise reduction through input frequency
modulation
Large reduction in noise countermeasure time and cost
possible
Frequency modulation rate and modulation period
changeable by register setting
Modulation period
Without frequency modulation
With frequency modulation rate of -3%Modulation period: 13 to 27 kHz
Improvement of
10 dB or more
Frequency
modulation rate
* JMP r0 instruction for the V850 CPU
V850
Flash
Target system
On-chip debug emulator
MINICUBE
Host machine
• Break
• Execute
• Pin mask
• Download
• Execution time measurement
• Non-use of user resources
Clock monitor
On-chip debugger
Main clock
Internal reset signal
Internal oscillation
clock
reset
enable
Flag
Reset upon abnormal stop
Main clock oscillation monitoring
Run/stop settable by software
+
---
Reference
voltage
Flag
Interrupt signal
VDD
VDD
Reset signal
Selector
Detection level selection
ResistorResistorResistor
Products: V850E/IF3, IG3, Ix4, Ix4-H, Sx3-H
V850ES/Sx2, Sx3, Fx2, Fx3, Fx3-L, Jx3, Jx3-E,
Jx3-H, Jx3-L, Jx3-U, Hx3, IK1, IE2
V850E2/Fx4-L, Fx4, Fx4-M, Fx4-H, Fx4-G, Sx4-H
Detection voltage level changeable by using software
Can be used in place of reset IC, lowering system costs
Detection voltage not changeable after mode transition
(security protection)
Products: V850E/IA3, IA4, IF3, IG3, Ix4, Ix4-H, Dx3, Sx3-H
V850ES/SG1, Sx2, Sx2-H, Sx3, Fx2, Fx3, Fx3-L,
Jx3, Jx3-E, Jx3-H, Jx3-L, Jx3-U, Hx3, IK1, IE2
V850E2/Fx4-L, Fx4, Fx4-M, Fx4-H, Fx4-G, Sx4-H
Monitors abnormal stops of main clock by using internal oscillator
During abnormal stop, entire system can be set to reset status
Prevention of damage due to system deadlock or program loop
Products: V850E2/MN4, ML4, ME3*
1
, Fx4-L, Fx4, Fx4-M,
Fx4-H, Fx4-G, Sx4-H
V850E/ME2*
2
, MA3, IA4, IG3, Ix4, Ix4-H, DJ3,
DL3, Sx3-H
V850ES/Sx2, Sx2-H, Sx3, Fx2, Fx3, Fx3-L, Jx3,
Jx3-E, Jx3-H, Jx3-L, Jx3-U, Hx3
Realization of on-chip debugging of microcontroller with
DCU (debug control unit)
Compact and low-cost on-chip emulator
Downloading
Integrated debugger (ID850QB) supported
* 1. Tracing is possible by using the RTE-2000-TP made by Midas Lab
Co., Ltd.
* 2. Tracing is possible by using the RTE-2000-TP made by Midas Lab
Co., Ltd., or PARTNER-ET II, PARTNER-J made by Kyoto Micro
Computer Co., Ltd.
Low-voltage detector (LVI)
Other
36 37
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